Best Single Speed Freewheel: Compare 10 Threaded Options

#1 · Best Overall

1. Shimano SF-MX30

• Weight: 3.2 oz
• Material: Multi
• Size: 18Tx3/32" 1 Speed

Best for: For 18T Shimano Setups.

Why it ranks #1: Fits standard threaded hubs, has hardened-steel construction, and is specified as an 18T freewheel for a 3/32-inch chain.

Shimano’s SF-MX30 combines an 18-tooth count with a stated 3/32-inch format, giving riders a clearly identified option for a one-speed drivetrain using that chain width. Hardened steel teeth and standard threaded-hub compatibility further define this replacement’s intended fit.

The 18T size sets the gearing choice, while the listed 3/32-inch format identifies the chain-width match for a compatible single-speed drivetrain. Shimano specifies hardened steel teeth for longevity and durability, and says the freewheel fits standard threaded hubs. Together, those facts help buyers assess both the hub style and chain format before replacing a component. The supplied information does not identify a removal tool or installation procedure for maintenance.

Skip it if you need a 16T Shimano option; the Shimano MX 16 Tooth model lists that tooth count and 3/32-inch compatibility.

The SF-MX30 suits riders seeking an 18T Shimano freewheel for a standard threaded hub and 3/32-inch chain format. Confirm those drivetrain details against your setup; removal-tool guidance is not included in the supplied facts.

Listed on Amazon as: Shimano SF-MX30 Single Speed Freewheel (18Tx3/32" 1 Speed)

#2 · Best Chain Flexibility

2. ACS Paws 4.1

• Weight: 159 g
• Material: Multi
• Size: 1/8"

Best for: For High-Torque Riding.

Why it ranks #2: Its listed compatibility covers both 1/8- and 3/32-inch chains, and the product description identifies cold-forged construction for high-torque use.

Cold-forged construction and a high-strength nickel-plated design give the ACS Paws 4.1 a stated focus on demanding, high-torque riding. Its 4-notch removal system is described as compatible with standard tools, while the listed chain compatibility spans both 1/8-inch and 3/32-inch sizes.

ACS positions the cold-forged construction for strength and resilience under demanding riding conditions, while nickel plating is specified to enhance corrosion resistance and durability. The four-notch removal system supports installation and maintenance with standard tools, avoiding a special removal interface as the defining service requirement. Compatibility is listed for 1/8-inch and 3/32-inch chains, giving this freewheel broader stated chain options; the supplied details identify a 16T x 3/32-inch version in the product description.

Skip it if you need an explicitly listed 18T choice; Shimano SF-MX30 specifies an 18T 3/32-inch freewheel.

Choose the Paws 4.1 for high-torque riding when its stated chain compatibility and standard-tool removal suit your setup. The supplied description identifies a 16T x 3/32-inch version, so check that tooth count against your gearing needs.

Listed on Amazon as: ACS Freewheel PAWS 4.1

#3 · Fast Engagement

3. Origin8 Hornet 108

• Weight: 7.04 oz
• Material: Multiple
• Size: 17t

Best for: For Fast Engagement Builds.

Why it ranks #3: Nine pawls and 108 engagement points provide a clearly differentiated design; it also specifies 1/8-inch chain compatibility.

Nine pawls and 108 engagement points give the Origin8 Hornet 108 a listed 3.33-degree engagement interval, a concrete choice for riders prioritizing quick engagement. Its precision CNC CroMo construction and 1/8-inch format make it a performance-oriented option for compatible single-speed setups.

The nine-pawl, 108-point mechanism is specified to engage at 3.33 degrees, supporting near-immediate power transfer as the drivetrain takes up movement. Precision CNC CroMo construction supplies the listed build material and method. The freewheel uses an eight-spline removal interface, so service requires a matching removal tool. The listing identifies a 17T size and 1/8-inch format; those details help narrow chain and gearing selection, but do not establish compatibility with every hub.

Skip it if you want a basic 1/8-inch replacement; ACS Main Drive lists standard-chain compatibility and removal with common four-prong tools.

The Hornet 108 fits riders seeking quick engagement in a 17T, 1/8-inch freewheel. Its eight-spline removal interface is a practical service consideration, and buyers should match the listed tooth and chain format to their setup.

Listed on Amazon as: Origin8 Hornet 108 1/8" Performance Freewheel

#4 · Best 1/8-Inch Fit

4. ACS Main Drive

• Weight: 4 oz
• Material: Alloy Steel
• Size: 16T X 1/8-Inch

Best for: For 1/8-Inch BMX Replacements.

Why it ranks #4: It specifies 16 teeth, a 1/8-inch chain, standard 1.37-inch by 24-tpi hub threads, and compatibility with four-prong removal tools.

ACS Main Drive pairs 16 teeth with 1/8-inch chain compatibility and a removal design for traditional BMX four-prong freewheel tools. Those concrete interface details make it a practical basic replacement candidate for low-torque applications using standard hub threads.

Its 16T count and 1/2-inch by 1/8-inch chain fit help buyers match the freewheel to a compatible single-speed drivetrain. ACS lists regular 1.375-inch by 24tpi hub threads, while the four-prong removal interface supports service with ACS or other universal removal tools. The product is described as a basic OEM replacement for most low-torque applications, so its stated use is less suited to riders seeking a freewheel specifically identified for high-torque riding.

Skip it if you ride aggressively at high torque; ACS Paws 4.1 lists cold-forged construction for demanding riding conditions.

Choose the Main Drive for a compatible 1/8-inch-chain setup where standard threads and four-prong service access suit the job. Its stated low-torque application is an important boundary for more demanding riding.

Listed on Amazon as: ACS Main Drive Single Speed Freewheel (16T x 1/8-Inch)

#5

5. Shimano SF-1200

• Weight: 6.08 oz
• Material: Steel
• Size: 1-Speed

Best for: For Hardened-Steel Replacement.

Why it ranks #5: Hardened steel and standard threaded-hub fit make it a straightforward replacement candidate, although the supplied details do not specify chain width.

Hardened steel teeth are the defining feature of Shimano’s SF-1200, giving this 16T single-speed freewheel a stated focus on durability. Its standard threaded-hub fit makes it relevant to riders replacing a freewheel on a compatible hub, while the simple one-speed format keeps the choice focused.

The hardened-steel teeth are specified for longevity and durability, making the material detail useful to riders choosing a replacement for regular single-speed use. Shimano says the SF-1200 fits standard threaded hubs, which narrows the compatibility check to that hub style. The listing identifies it as a one-speed freewheel with 16 teeth, but it does not give a chain-width specification or removal-tool information, so buyers must rely on those drivetrain details being established separately.

Skip it if you require a stated chain width; ACS Main Drive explicitly lists compatibility with 1/8-inch chains.

Pick the SF-1200 if you want a hardened-steel, 16T Shimano freewheel for a standard threaded hub. Its stated tooth and hub details help identify the part, but the listing leaves chain width and removal method unspecified.

Listed on Amazon as: Shimano Single Freewheel Sprocket, SF-1200 16T Brown

#6

6. Shimano MX 16T

• Weight: 3.2 oz
• Material: Chrome-Moly Steel
• Size: 16 in

Best for: For Shimano 3/32-Inch Chains.

Why it ranks #6: This 16-tooth Shimano model specifies 1/2-inch by 3/32-inch compatibility, and its additional description says it is designed for 1/8-inch chains too.

Shimano’s 16-tooth freewheel is specified for a 1/2-inch by 3/32-inch chain, giving riders with that narrower chain size a direct single-speed replacement option. Its chrome-moly steel construction supplies the material specification, while the product description also states compatibility with 1/8-inch chains.

The 16T count provides a fixed tooth option, and the stated 1/2-inch by 3/32-inch compatibility makes chain sizing the key selection point for a compatible single-speed setup. Shimano also describes the freewheel as suitable for 1/8-inch chains, widening the stated chain compatibility. Its chrome-moly steel construction identifies the material, and its freewheel format is intended for a threaded bicycle wheel; the supplied information does not specify a removal tool or installation procedure.

Skip it if you need a stated hardened-steel construction; the Shimano SF-1200 specifically lists hardened steel teeth.

This Shimano suits riders seeking a 16T freewheel for a single-speed wheel and a stated 3/32-inch chain fit. Check that chain specification against the bicycle’s drivetrain, since the supplied details do not explain installation or removal.

Listed on Amazon as: SHIMANO Mx 16 Tooth Single Speed Freewheel Cycling Wheel (16T X 3/32-Inch)

#7

7. Hycline Single Speed Freewheel

• Weight: 5 oz
• Material: Alloy Steel
• Size: 16T

Best for: For 1/8-Inch Chain Setups.

Why it ranks #7: The listed 16T version fits a 1/2-inch by 1/8-inch chain and weighs 140g, but its thread-pitch details warrant careful verification.

A high-tensile-steel 16T cog with a 1/2-inch by 1/8-inch chain fit gives this Hycline freewheel a clear match for compatible single-speed builds. Its precise internal threads support a close hub connection, while the manufacturer describes rotation as smooth and maintenance as easy for routine ownership.

The 16T tooth count and stated 1/2-inch by 1/8-inch chain compatibility help buyers match the freewheel to a single-speed drivetrain using that chain size. Its 34mm inner diameter and 1.375mm thread pitch identify the hub interface, while the high-precision internal thread is intended to connect closely and rotate smoothly. Installation is by screwing the freewheel onto the hub and tightening it firmly; the listing cautions that thickness matching may take experience to balance with the sprocket.

Skip it if you need a 3/32-inch chain fit; the SHIMANO MX 16 Tooth listing specifies 3/32-inch compatibility.

Choose this Hycline for a single-speed bicycle using a 1/2-inch by 1/8-inch chain and a compatible threaded hub. Its thread details aid selection, but thickness matching remains an installation consideration when balancing the sprocket.

Listed on Amazon as: Hycline Single Speed Bike Freewheel 12T/14T/16T/18T/20T/22T/24T

#8

8. DRIFT MANIAC 30POE

• Weight: 0.15 kg
• Material: steel
• Size: 16T

Best for: For 30-Point Engagement Setups.

Why it ranks #8: It gives specific 34mm inner-diameter and 1.37-inch by 24-tpi thread details, but lists 3/32-inch chain compatibility and requires an eight-spline tool.

Thirty points of engagement distinguish this DRIFT MANIAC freewheel, alongside its 16T size and stated 1/2-inch by 3/32-inch chain fit. The listed 34mm inner diameter and B1.37-inch by 24tpi hub thread give buyers concrete interface specifications for checking a compatible setup.

The 30-point engagement specification and loose-ball-bearing construction identify the mechanism details, while the 16T size provides a defined gearing option. Its stated 1/2-inch by 3/32-inch chain fit, B1.37-inch by 24tpi hub thread, and 34mm inner diameter give several compatibility checks before installation. The listing also says it works with up to a nine-speed chain. Removal requires a special eight-spline tool, with a “big tool” specified for 16T, 17T, and 18T models.

Skip it if you want a four-prong removal option; ACS Main Drive lists compatibility with ACS four-prong or universal tools.

This DRIFT MANIAC suits riders matching its 16T size, 3/32-inch chain, and listed hub dimensions who want 30-point engagement.

Listed on Amazon as: DRIFT MANIAC Single Speed Freewheel 16t/17t/18t/20t/22t 30poe

#9

9. WEEROCK Single Speed Freewheel

• Weight: 0.15 kg
• Material: Iron

Best for: For Commuter 1/8-Inch Chains.

Why it ranks #9: The 16T version specifies a 1/2-inch by 1/8-inch chain and iron construction, though hub-thread and removal-tool details are not supplied.

WEEROCK specifies a 16T freewheel for 1/2-inch by 1/8-inch chains, making chain compatibility its clearest practical distinction for commuter and folding-bike owners. Its iron construction and high-precision threading are described as supporting a tight hub connection and smoother cycling.

The 16T model and stated 1/2-inch by 1/8-inch chain fit help narrow selection for compatible single-speed commuter, folding, lady, and beach bikes. WEEROCK identifies iron as the material and says the clear, high-precision thread integrates tightly with the hub, supporting smooth cycling. An electroplated surface treatment is also listed, though the supplied details do not explain its maintenance requirements or specify a removal interface for servicing.

Skip it if you need an identified removal interface; Origin8 Hornet 108 lists an eight-spline removal feature.

This WEEROCK suits commuters and folding-bike riders whose drivetrain uses a 1/2-inch by 1/8-inch chain. Its stated thread fit and 16T size help identify the setup, but service-tool details are not provided.

Listed on Amazon as: WEEROCK Bike Single Speed Freewheel 16T/18T/20T,One Speed Bicycle Freewheel

#10

10. T best 14T Freewheel

Best for: For 14T Multi-Bike Replacements.

Why it ranks #10: Its 14-tooth metal sprocket is described for several bicycle types, but the supplied specifications do not establish chain width or hub-thread compatibility.

A 14-tooth sprocket and stated suitability for mountain, road, folding, and city bikes give this T best freewheel broad listed application across common bicycle types. Its metal construction and simple installation claim make it an option for riders seeking a straightforward single-speed replacement.

The fixed 14T design gives buyers a specific gearing choice rather than multiple tooth options, while the stated applications cover mountain, road, folding, and city bikes. The product is described as metal and high-strength, supporting its role as a replacement component. Simple installation is claimed, but the listing does not provide a chain size, hub thread measurement, or removal-tool specification, so those details cannot be used to verify a particular drivetrain interface.

Skip it if you need a stated 1/2-inch by 1/8-inch chain fit; WEEROCK specifies that chain size for its 16T freewheel.

Consider this T best for a 14T replacement when its broad listed bike applications match your use. The supplied information omits chain and hub-interface measurements, so it is less informative for buyers verifying drivetrain dimensions.

Listed on Amazon as: T best Single Speed Freewheel, Bike Freewheel Sprocket Gear 14T Single Speed Flywheel for Mountain Road Folding Single Speed Conversion Kit Single Speed Freewheel