Shopping for bicycle hubs usually comes down to one big tradeoff: engagement quality and drivetrain compatibility versus price and simplicity. After comparing six popular options, the BUBGAOS 32H Front & Rear Disc Brake Hub stands out as the best overall pick for mountain bikers, thanks to its 6-pawl engagement system, 7075 aluminum shell, and 8–13 speed compatibility. If you’re rebuilding a commuter or cruiser on a tighter budget, the DONSP1986 Bicycle Hub Set with quick release skewers front and rear offers solid aluminum construction at a friendlier price point, while the coaster brake hub is the go-to for riders who want braking built directly into the hub with minimal maintenance. Read on for the full breakdown of how these six hubs compare on axle standards, spoke hole counts, braking compatibility, and value.
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Key Takeaways
- The BUBGAOS hub was the only option in this lineup with a 6-pawl freehub and 8–13 speed compatibility, making it the clear choice for anyone running modern drivetrains or riding technical terrain where fast engagement matters.
- Four of the six products are DONSP1986 hubs, which means the real decision for budget buyers isn’t brand — it’s configuration: single rear hub, full front/rear set, thread-on freewheel versus standard shell, and 32H versus 36H drilling.
- Disc brake compatibility is the biggest dividing line in this roundup: only the BUBGAOS hubs have 6-bolt rotor mounts, so riders with disc brakes have exactly one viable option here.
- Quick release skewers included with the DONSP1986 sets save a separate purchase and make these the most convenient choice for standard 100mm/135mm frame spacing, but none of these hubs suit thru-axle frames.
- The coaster brake hub fills a niche the others can’t touch — internal braking for cruisers and kids’ bikes — but it’s incompatible with derailleur gearing, so it’s a specialist purchase, not a do-it-all hub.
| bicycle hub | Material | Rear Width | Compatibility | Holes |
|---|---|---|---|---|
| DONSP1986 Bicycle Rear Hub 32 | Aluminum Alloy | 135mm | Rotary Freewheel (21/24 Speed) | — |
| DONSP1986 Bicycle Hub Set | Aluminum Alloy | — | 5/6/7/8-speed rotary freewheel, ball bearing | 36H |
| BUBGAOS 32H Front & Rear Disc | Axles: 7075 aluminum; Shell: 6061 aluminum | — | Shimano and SRAM 8-12 speed | — |
| DONSP1986 Bicycle Rear Hub | Aluminum Alloy | 135mm | — | 36 |
| Bicycle Coaster Brake Hub | Stainless steel hub / aluminum body (listing inconsistent) | 110mm | — | — |
| DONSP1986 Bike Hub Set | Aluminum | 135mm | 21/24 Speed Rotary Flywheel | 36 |
More Details on Our Top Picks
DONSP1986 Bicycle Rear Hub 32 Hole, 135mm Aluminum Alloy
This hub is the simplest path to a working rear wheel for riders with older 21/24-speed drivetrains. The 135mm spacing and 32-hole drilling cover the most common replacement scenarios, and the double threading accepts standard rotary freewheels without fuss. Compared with the BUBGAOS disc brake hub set, this option skips modern freehub compatibility entirely — but that is the point: it costs far less and targets a different bike. Where the DONSP1986 36-hole single thread hub offers more spoke holes for heavier riders, the 32-hole version here keeps the wheel marginally lighter and easier to source spokes for. The tradeoff is maintenance: the loose ball bearing system needs periodic adjustment and greasing, which cartridge-bearing hubs eliminate. Still, for reviving a commuter or vintage bike on a minimal budget, it is hard to argue with this level of simplicity.
Pros:- Standard 135mm width fits most older mountain and hybrid frames
- Double thread accepts common 21/24-speed rotary freewheels
- Lightweight 338g aluminum alloy construction keeps rotating mass low
- 32-hole drilling suits widely available spoke lengths
Cons:- Freewheel-only design is incompatible with cassette-based drivetrains
- Loose ball bearings require regular adjustment and re-greasing to stay smooth
Best for: Owners of older 21/24-speed bikes who need a cheap, standard rear hub to rebuild a worn wheel
Not ideal for: Riders with modern cassette or disc brake drivetrains — the freewheel-only threading rules them out
- Material:Aluminum Alloy
- Hole Count:32
- Rear Width:135mm
- Weight:338g (0.75 lb)
- Thread Type:Double Thread (3/8)
- Compatibility:Rotary Freewheel (21/24 Speed)
- Color:Silver
Our verdict“A sensible low-cost rear hub for aging freewheel bikes — modern drivetrain owners should look at the BUBGAOS set instead.”
DONSP1986 Bicycle Hub Set – 3/8 x 14G x 36H, 100mm Front / 136mm Rear, Quick Release, Aluminum, 1 Pair
Buying hubs as a matched pair usually means better value, and this set is the most complete package for a full wheel rebuild. You get both front and rear hubs, quick release skewers included, and sealed low-friction steel bearings that shrug off water and mud better than the open ball bearings in the DONSP1986 32-hole hub. The 36-hole drilling also produces stiffer wheels than 32-hole alternatives — a real benefit for heavier riders or loaded commuting. The catch is compatibility: like the other DONSP1986 hubs here, it works only with 5-6-7-8 speed rotary freewheels, not modern cassettes, and it lacks disc brake mounts. Compared with the BUBGAOS hub set, it sits firmly in the rim-brake, budget-rebuild category rather than the performance end. For restoring a workhorse bike, though, the pairing and included skewers make it the practical pick.
Pros:- Includes both front and rear hubs plus quick release skewers
- Low-friction sealed steel bearings resist water, mud, and dirt
- 36-hole drilling builds into stiff, durable wheels
- Quick release levers make wheel swaps and flat fixes fast
Cons:- Freewheel-only compatibility caps it at 8-speed drivetrains
- No disc brake rotor mounts, limiting frame compatibility
- Ball bearings still trail sealed cartridge systems in longevity
Best for: Home mechanics rebuilding both wheels on a 5-8 speed rim-brake commuter or cruiser who want everything in one box
Not ideal for: Anyone running 9-speed or higher cassettes or disc brakes — the freewheel threading and lack of rotor mounts rule it out
- Material:Aluminum Alloy
- Axle Size:3/8 x 14G
- Holes:36H
- Front Hub Width:100mm
- Rear Hub Width:136mm
- Compatibility:5/6/7/8-speed rotary freewheel, ball bearing
- Color:Black
Our verdict“The smartest buy when you need to rebuild both wheels of an older rim-brake bike without buying parts piecemeal.”
BUBGAOS 32H Front & Rear Disc Brake Hub for MTB – 6 Pawls, 7075 Aluminum, 8-13 Speed Compatible
This is the most future-proof hub set in the lineup. The six-pawl, three-tooth freehub delivers fast engagement — a genuine advantage on technical climbs where pedaling precision matters — and the 7075 aluminum axles with 6061 shell keep weight low without sacrificing stiffness. Compatibility is the real story: unlike every DONSP1986 option here, which top out at freewheel-based 8-speed setups, this set accepts Shimano and SRAM 8-12 speed cassettes and carries disc brake mounts, making it suitable for a modern mountain bike build. Compared with the DONSP1986 quick release pair, the bearing count is also higher (four in the rear versus two up front), which spreads load and extends service intervals. The drawbacks are narrower: it comes only in black, and buyers wanting a simple freewheel replacement will be paying for capability they never use.
Pros:- Six-pawl freehub provides rapid engagement and efficient power transfer
- Accepts Shimano and SRAM 8-12 speed cassettes for wide drivetrain compatibility
- Disc brake ready for modern MTB and gravel builds
- Lightweight 7075 aluminum axles reduce rotating mass
Cons:- Only available in black, limiting customization for color-coordinated builds
- Overkill and more expensive than freewheel hubs for basic commuter rebuilds
Best for: Mountain bikers and gravel riders building a modern 8-12 speed disc brake wheelset who value quick engagement
Not ideal for: Vintage or freewheel-based bike owners — cassette-only compatibility makes it useless for older drivetrains
- Material:Axles: 7075 aluminum; Shell: 6061 aluminum
- Axle Sizes:Front M9x100mm, Rear M10x135mm
- Number of Holes:32H (compatible with 36H)
- Pawls:6 pawls, 3 teeth
- Bearings:Front: 2, Rear: 4
- Compatibility:Shimano and SRAM 8-12 speed
- Model:HG-01
Our verdict“The clear choice if you are building wheels around a modern cassette and disc brakes — skip it for legacy freewheel bikes.”
DONSP1986 Bicycle Rear Hub, 36 Hole, Single Thread, 135mm Width, Aluminum Alloy
The 36-hole drilling is what separates this hub from its 32-hole sibling: more spoke holes mean more load distribution and a stiffer, tougher wheel, which matters for heavier riders, cargo bikes, or e-bike conversions carrying battery weight. Like the DONSP1986 32-hole hub, it uses the same 135mm spacing, aluminum alloy shell, and 21/24-speed freewheel threading, so the choice between them really comes down to strength versus a marginally lighter wheel. It also matches the DONSP1986 quick release pair’s 36-hole format if you want a spare rear on hand. Be aware of what arrives: this is a hub shell only, with no spokes, freewheel, or bearings in the box, so budget for those parts separately. The listed weight is also inconsistent across the listing, a small but telling detail about the product’s documentation.
Pros:- 36-hole drilling builds into strong, stiff wheels suited to heavy loads
- Standard 135mm width fits common older frames
- Lightweight aluminum alloy construction for its class
- Accepts common 14G spokes for easy sourcing
Cons:- Hub only — no freewheel, spokes, or bearings included
- Inconsistent listed weight information makes planning builds harder
- Single freewheel thread caps compatibility at 21/24-speed setups
Best for: Heavier riders or cargo/e-bike builders who need a high-spoke-count rear hub for maximum wheel strength
Not ideal for: Buyers expecting a ready-to-ride solution — nothing beyond the hub itself is included, and cassette drivetrains are unsupported
- Material:Aluminum Alloy
- Holes:36
- Rear Width:135mm
- Thread:3/8 single thread
- Weight:338g / 0.75 lb (listing inconsistent)
- Compatible Speeds:21/24 Speed
- Spoke Compatibility:14G spokes
- Part Number:36TS
Our verdict“Pick this over the 32-hole version when wheel strength and load capacity outrank shaving a few grams.”
Bicycle Coaster Brake Hub – Bike Rear Hub
Coaster brakes occupy a niche the other hubs here cannot touch: braking with no cables, no levers, no maintenance schedule. Pedal backward and you stop — ideal for beach cruisers, kids’ bikes, and simple city rides where a low-maintenance rear hub is the whole point. Unlike the DONSP1986 quick release pair, which relies on rim brakes and external hardware, this hub integrates everything, and it ships with a sprocket, screws, and gasket so installation is genuinely complete. The 110mm rear width is narrower than the 135mm spacing on the DONSP1986 freewheel hubs, so measure your frame before ordering — it suits cruiser-style frames, not mountain bikes. Material listing is muddled between stainless steel and aluminum, which raises questions about long-term corrosion resistance in coastal environments. It is also heavier and less efficient than a freehub setup like the BUBGAOS.
Pros:- Integrated coaster brake eliminates cables, levers, and brake adjustments
- Includes sprocket, screws, and gasket for a complete installation
- Stainless steel construction stands up to wear and weather
- Fits standard 36-hole rims with common 1.5-inch adapters
Cons:- 110mm rear width fits only cruiser-style frames, not standard 135mm MTB spacing
- Inconsistent material description creates uncertainty about corrosion resistance
- Heavier and less mechanically efficient than cassette-based hubs
Best for: Cruiser and kids’ bike owners converting to or replacing a low-maintenance coaster brake rear wheel
Not ideal for: Performance or mountain riders — coaster brakes overheat on long descents and cannot match hand brakes for control
- Hole Count:36
- Material:Stainless steel hub / aluminum body (listing inconsistent)
- Rear Width:110mm
- Axle Length:165mm
- Hub Diameter:38mm
- Sprocket:18-tooth (included)
- Adapter Compatibility:1.5-inch adapter
Our verdict“The right hub when simplicity is king on a cruiser — everyone else should stick to freewheel or cassette options.”
DONSP1986 Bike Hub Set – 36 Hole, Quick Release, Aluminum, Front & Rear Pair (100mm x 135mm)
Buying hubs as a matched pair saves you the guessing game of mixing brands and spoke-hole counts, and that is where this set earns its place. Unlike the DONSP1986 Bicycle Rear Hub 32 Hole, which covers only the back wheel, this package includes front and rear hubs plus quick-release skewers, so a full wheelset rebuild comes in one purchase. The 36-hole drilling suits touring and commuter builds where extra spokes mean extra durability on loaded rides, and the 135mm rear spacing fits most mountain and hybrid frames with standard quick-release dropouts. The tradeoff is real, though: these hubs run loose ball bearings rather than sealed cartridges, so compared with the BUBGAOS 32H hub with its six-pawl design, expect more frequent maintenance and less crisp engagement. The chromed aluminum finish looks tidy but is cosmetic, not a durability upgrade.
Pros:- Front and rear hubs plus quick-release skewers included in a single matched set
- 36-hole drilling builds stiffer, more durable wheels for loaded or daily riding
- Disc brake compatibility front and rear suits modern commuter and MTB frames
- Lightweight aluminum construction keeps complete wheel builds reasonable
Cons:- Loose ball bearings need more frequent adjustment and repacking than sealed cartridge bearings
- 36-hole drilling rules out lighter 28- and 32-hole rims, limiting rim choices
Best for: Commuter and touring riders rebuilding a pair of 36-hole wheels on a standard quick-release frame who want everything in one box
Not ideal for: Riders upgrading a modern mountain bike — the ball bearings and quick-release axles lag behind the sealed-cartridge, thru-axle standards on newer trail bikes
- Brand:DONSP1986
- Material:Aluminum
- Holes:36
- Front Width:100mm
- Rear Width:135mm
- Axle Type:Quick Release
- Braking:Front and Rear Disc Brake
- Compatibility:21/24 Speed Rotary Flywheel
- Item Weight:16 ounces
Our verdict“This is the pick for riders rebuilding both wheels at once on a budget, not for anyone chasing premium engagement or low-maintenance sealed bearings.”
How We Picked
My ranking logic for this roundup rested on four factors that actually change the buying decision: drivetrain compatibility (freewheel thread versus splined freehub, and supported speed ranges), braking compatibility (rim brake, disc mount, or integrated coaster brake), build and engagement quality (shell material, pawl count, bearing type), and value relative to intended use. Because most of these hubs target budget-conscious riders rebuilding older bikes, I weighed axle spacing and spoke hole counts heavily — a hub that doesn’t match your frame or rim drilling is worthless no matter how well it’s made.
The BUBGAOS disc brake hub earned the top spot because it’s the only option here with modern freehub engagement and disc mounts, covering the widest range of serious use cases. The DONSP1986 quick release sets ranked just below for their convenience and price-to-quality ratio on standard rim brake builds, while the single rear hubs slotted into value roles depending on thread type and drilling. The coaster brake hub sits last not because it’s poorly made, but because its audience is the narrowest — it only makes sense if you’re building or repairing a single-speed cruiser.
| bicycle hub | Material |
|---|---|
| DONSP1986 Bicycle Rear Hub 32 | Aluminum Alloy |
| DONSP1986 Bicycle Hub Set | Aluminum Alloy |
| BUBGAOS 32H Front & Rear Disc | Axles: 7075 aluminum; Shell: 6061 aluminum |
| DONSP1986 Bicycle Rear Hub | Aluminum Alloy |
| Bicycle Coaster Brake Hub | Stainless steel hub / aluminum body (listing inconsistent) |
| DONSP1986 Bike Hub Set | Aluminum |
Factors to Consider When Choosing Bicycle Hubs
A hub is one of those components riders often buy without realizing how many compatibility decisions are baked into the choice. Before you commit to any of the six hubs above, work through these factors — getting one wrong usually means a return, not an upgrade.Axle Spacing and Attachment Type
The single most common mistake in hub buying is ignoring frame spacing. Every hub in this roundup uses old-standard spacing — roughly 100mm front, 135mm rear — which fits most older mountain bikes, hybrids, and commuters. If your frame uses thru-axles (common on bikes from roughly 2015 onward for mountain and disc road bikes), none of these hubs will work without adapters or a frame change, and you’d be better off shopping the 12mm/15mm thru-axle market instead. Also check whether your dropouts are the open QR style that quick release skewers require; a closed thru-axle dropout physically can’t accept a 3/8-inch solid or QR axle. Measuring your frame’s dropout-to-dropout width before ordering takes thirty seconds and prevents the most frequent return reason in this category.
Spoke Hole Count Must Match Your Rim
Hubs come drilled for specific spoke counts — 32 hole and 36 hole dominate this lineup — and the hub’s count must exactly match your rim’s drilling. You cannot lace a 32H hub to a 36H rim or mix counts in any way; there’s no workaround. The general rule: 32H builds are lighter and fine for most riders under 200 pounds on smooth terrain, while 36H builds are the traditional choice for heavier riders, loaded touring, and rough roads because the extra spokes spread load and make the wheel more durable. If you’re buying a hub to relace an existing rim, count the rim’s holes first, not after. And if you’re buying a complete hub set like the DONSP1986 pairs, confirm both wheels use the same drilling, since some bikes mix a 32H front with a 36H rear.
Freewheel Thread Versus Splined Freehub
This distinction trips up more buyers than any other. The DONSP1986 single-thread rear hubs accept a thread-on freewheel, the older standard where the ratchet mechanism screws onto the hub shell — typically limited to 5–7 speeds. The BUBGAOS hub uses a splined freehub body, the modern standard that accepts 8–13 speed cassettes and is replaceable separately if the ratchet wears out. If your bike currently has a 7-speed freewheel, buying a cassette hub means also replacing your derailleur, shifter, and possibly the wheel’s dish — an expensive chain reaction. Match the hub to your existing drivetrain unless you’re planning a full drivetrain upgrade at the same time, in which case the cassette-style hub is the more future-proof purchase.
Brake Compatibility: Rim, Disc, or Coaster
Your braking system dictates which hubs are even on the table. Rim brake bikes can use almost anything here, but disc brake bikes need 6-bolt rotor mounts, which only the BUBGAOS provides in this group. The coaster brake hub works differently still: the brake lives inside the hub, activated by pedaling backward, which eliminates cables and levers entirely — ideal for cruiser and kids’ bikes, but incompatible with derailleurs and geared drivetrains. A related mistake is buying a disc-ready hub for a rim brake bike ‘just in case’; the rotor mounts add a small weight penalty and cost with no benefit unless you genuinely plan to convert later. Decide your braking system first and let it filter your hub shortlist before comparing anything else.
Engagement Quality and Riding Style
Engagement refers to how far the cranks rotate before the hub’s ratchet catches — measured in degrees and determined by pawl count and tooth geometry. The 6-pawl design in the BUBGAOS delivers near-instant engagement, which matters most on technical climbs where you ratchet the pedals through obstacles, and barely at all on flat commutes. Cheaper hubs with 3-pawl or simple freewheel mechanisms have laggy engagement and more slack before power transfer, but they’re also simpler to service and cheaper to replace. Be honest about your terrain: paying for fast engagement on a rail-trail commuter is money spent on a spec you’ll never feel. Conversely, riders who tackle rocky switchbacks will notice the difference within one ride.
Material, Bearings, and Long-Term Maintenance
Every hub in this roundup uses an aluminum shell, which is the right call at this price tier — steel hubs are heavier with no durability advantage for shell construction. Where hubs diverge is in the internals: loose ball bearings are adjustable and rebuildable at home with cheap parts, while sealed cartridge bearings run cleaner in wet conditions and need less frequent attention but require full replacement when worn. 7075 aluminum, as used in the BUBGAOS, is stronger and stiffer than the more common 6061 alloy, which matters for riders who hammer their wheels. Whichever you choose, budget for occasional maintenance — fresh grease, bearing checks, and freehub cleaning will extend any hub’s life by years, and a neglected premium hub dies faster than a maintained budget one.
Frequently Asked Questions
Can I use a quick release hub set on a modern thru-axle frame?
No — quick release hubs and thru-axle frames are physically incompatible without conversion hardware, and even then the results are compromised. Quick release hubs use a 9mm front and 3/8-inch (roughly 10mm) rear axle that slides into open dropouts, while thru-axle frames have closed dropouts threaded to accept a 12mm or 15mm through-bolt. If your bike was made after roughly 2015 with disc brakes, check the rear dropout before buying any hub in this roundup, because most of them follow the older quick release standard. Thru-axle conversion kits exist for some frames, but they add cost and complexity that usually cancels out the savings of a budget hub. Riders with thru-axle bikes should shop specifically for hubs listed with 12x142mm or 12x148mm spacing instead.
What’s the difference between a freewheel hub and a cassette hub, and which do I need?
A freewheel hub has threads on the shell that a self-contained ratchet mechanism screws onto, and it’s the older standard limited to about 5–7 speeds. A cassette hub (also called a freehub) has a splined body that slides into the hub where the ratchet lives inside the hub itself, supporting 8–13 speed cassettes. The easiest check: remove your rear wheel and look at the splines or threads where the gears attach, or count your rear cogs — seven or fewer is almost certainly a freewheel. The DONSP1986 single-thread hubs fit freewheels, while the BUBGAOS fits cassettes. Mixing this up is costly, because switching from freewheel to cassette usually requires a new shifter, derailleur, and sometimes a wider frame spacing.
Is 32 hole or 36 hole better for my riding weight and terrain?
For riders under about 200 pounds on paved or mild gravel terrain, a 32H build is lighter, slightly cheaper, and plenty durable — the four extra spokes of a 36H build add weight with little benefit you’d notice. Heavier riders, e-bike conversions, loaded touring, and frequent rough-road or singletrack use all favor 36H, because more spokes reduce tension per spoke and make the wheel less prone to going out of true. The catch: your hub’s drilling must exactly match your rim’s, so if you’re relacing an existing 36H rim, a 32H hub is off the table regardless of preference. If you’re building new wheels from scratch and sit near the boundary, the 36H option is the safer long-term choice, since a slightly heavier durable wheel beats a lighter one that needs constant truing.
Why would anyone choose a coaster brake hub over hand brakes?
A coaster brake hub moves the braking mechanism inside the rear hub, activated by backpedaling, which eliminates cables, levers, and brake pads entirely. That makes it attractive for three groups: cruiser and beach bike riders who value the clean look and low maintenance, parents buying for young kids whose hands are too small for reliable lever braking, and city riders in flat areas who want a drivetrain that shrugs off rain and snow. The tradeoffs are real, though — you can’t coast and brake at the same time, the rear wheel skids easily on loose surfaces, and coaster hubs are incompatible with derailleurs and multiple gears. If your riding involves hills, wet descents, or any gearing beyond single speed, a coaster hub is the wrong tool despite its simplicity.
Does a 6-pawl hub actually make a noticeable difference while riding?
It depends almost entirely on terrain. Six pawls arranged to engage alternately cut the crank rotation needed to catch power down to just a few degrees, versus the 15–25 degrees typical of basic 3-pawl hubs and thread-on freewheels. On technical climbs where you ratchet the pedals over rocks and roots, that difference is immediately felt — each half-turn of the cranks transfers power instead of freewheeling dead space. On flat commutes, rail trails, or steady road riding where you’re pedaling continuously, most riders would never detect the difference in a blind test. Since the 6-pawl BUBGAOS also brings disc mounts and cassette compatibility, the engagement is really the third reason to buy it rather than the first — but for mountain bikers, it’s the spec that justifies choosing it over the cheaper DONSP1986 options.
Conclusion
The right pick here depends less on budget than on what your bike actually is. For mountain bikers and anyone running modern disc brakes or 8–13 speed drivetrains, the BUBGAOS 32H Disc Brake Hub is the best overall choice — its 6-pawl engagement, 7075 aluminum shell, and rotor mounts cover terrain and drivetrains the others simply can’t. For best value, the DONSP1986 quick release hub sets deliver front and rear hubs with skewers included, making them the smart buy for reviving an older commuter or hybrid on rim brakes. The DONSP1986 single rear hubs work best as targeted replacements — choose the 32H or 36H, threaded or standard version to match your existing wheel — rather than as planned upgrades. For beginners and casual riders, a complete hub set with quick release is the least intimidating path, since it removes most compatibility guesswork. And for the specific niche of cruiser and kids’ bike builds, the coaster brake hub is the only sensible answer, as long as you accept its single-speed limitation. Measure your frame spacing, count your rim holes, and identify your braking system before ordering — in this category, compatibility beats every other spec on the page.
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