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Surly Bicycle Cassettes and Freewheels

About Surly - Surly is a leading manufacturer of bicycle frames, and was one of the first Fat Bike manufacturers.

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Showing 24 products:

Surly Single Cassette Cog 18t
Surly Single Cassette Cog 18tSurly

Surly Single Speed Cogs. Photo for color and material reference only Fit Shimano freehub splines SCM 415 hardened CroMoly steel … read more

StarStarStarStarStar 5 of 5 ( 5 ) 5 of 5 stars average ( 5 reviews )

10% offretail $35.00 Ends 12/10! $31.50 + ships free

BuyBuyPART NUM 514377
Surly Single Cassette Cog 19t
Surly Single Cassette Cog 19tSurly

Surly Single Speed Cogs. Photo for color and material reference only Fit Shimano freehub splines SCM 415 hardened CroMoly steel … read more

StarStarStarStarStar 5 of 5 ( 5 ) 5 of 5 stars average ( 5 reviews )

10% offretail $35.00 Ends 12/10! $31.50 + ships free

BuyBuyPART NUM 904700
Surly Stainless Steel Track Cog Lockring 1.29" x 24 tpi Left-hand Thread
Surly Stainless Steel Track Cog Lockring 1.29" x 24 tpi Left-hand ThreadSurly

Surly Stainless Steel Track Lockring. Fits all but Campagnolo, Miche or Phil Wood 5mm thick with 0.65mm lip for maximum thread and lockring wrench … read more

StarStarStarStarStar 4 of 5 ( 1 ) 4 of 5 stars ( 1 review )

10% offretail $15.00 Ends 12/10! $13.50

BuyBuyPART NUM 945595
Surly Single Cassette Cog 21t
Surly Single Cassette Cog 21tSurly

Surly Single Speed Cogs. Fit Shimano freehub splines SCM 415 hardened CroMoly steel Designed as a singlespeed cog, but may also … read more

StarStarStarStarStar 5 of 5 ( 5 ) 5 of 5 stars average ( 5 reviews )

10% offretail $35.00 Ends 12/10! $31.50 + ships free

BuyBuyPART NUM 327091
Surly Single Cassette Cog 13t
Surly Single Cassette Cog 13tSurly

Surly Single Speed Cogs. Photo for color and material reference only Fit Shimano freehub splines SCM 415 hardened CroMoly steel … read more

StarStarStarStarStar 5 of 5 ( 5 ) 5 of 5 stars average ( 5 reviews )

10% offretail $35.00 Ends 12/10! $31.50 + ships free

BuyBuyPART NUM 500456
Surly Track Cogs - 3/32" - 16t Silver
Surly Track Cogs - 3/32" - 16t SilverSurly

Surly track cogs are threaded the same as a BMX freewheel (1.375 x 24 tpi right-hand threads). This means that they will fit on single-speed rear hubs … read more

StarStarStarStarStar 5 of 5 ( 2 ) 5 of 5 stars average ( 2 reviews )

10% offretail $35.00 Ends 12/10! $31.50 + ships free

BuyBuyPART NUM 800568
Surly Track Cogs - 1/8" - 19t Silver
Surly Track Cogs - 1/8" - 19t SilverSurly

Surly track cogs are threaded the same as a BMX freewheel (1.375 x 24 tpi right-hand threads). This means that they will fit on single-speed rear hubs … read more

StarStarStarStarStar 5 of 5 ( 2 ) 5 of 5 stars average ( 2 reviews )

10% offretail $35.00 Ends 12/10! $31.50 + ships free

BuyBuyPART NUM 779422
Surly Track Cogs - 1/8" - 18t Silver
Surly Track Cogs - 1/8" - 18t SilverSurly

Surly track cogs are threaded the same as a BMX freewheel (1.375 x 24 tpi right-hand threads). This means that they will fit on single-speed rear hubs … read more

StarStarStarStarStar 5 of 5 ( 2 ) 5 of 5 stars average ( 2 reviews )

10% offretail $35.00 Ends 12/10! $31.50 + ships free

BuyBuyPART NUM 141200
Surly Track Cogs - 1/8" - 16t Silver
Surly Track Cogs - 1/8" - 16t SilverSurly

Surly track cogs are threaded the same as a BMX freewheel (1.375 x 24 tpi right-hand threads). This means that they will fit on single-speed rear hubs … read more

StarStarStarStarStar 5 of 5 ( 2 ) 5 of 5 stars average ( 2 reviews )

10% offretail $35.00 Ends 12/10! $31.50 + ships free

BuyBuyPART NUM 408291
Surly Track Cogs - 3/32" - 15t Silver
Surly Track Cogs - 3/32" - 15t SilverSurly

Surly track cogs are threaded the same as a BMX freewheel (1.375 x 24 tpi right-hand threads). This means that they will fit on single-speed rear hubs … read more

StarStarStarStarStar 5 of 5 ( 2 ) 5 of 5 stars average ( 2 reviews )

10% offretail $35.00 Ends 12/10! $31.50 + ships free

BuyBuyPART NUM 765982
Surly Track Cogs - 1/8" - 15t Silver
Surly Track Cogs - 1/8" - 15t SilverSurly

Surly track cogs are threaded the same as a BMX freewheel (1.375 x 24 tpi right-hand threads). This means that they will fit on single-speed rear hubs … read more

StarStarStarStarStar 5 of 5 ( 2 ) 5 of 5 stars average ( 2 reviews )

10% offretail $35.00 Ends 12/10! $31.50 + ships free

BuyBuyPART NUM 678347
Surly Single-Speed Kit, Spacers and Lockring
Surly Single-Speed Kit, Spacers and LockringSurly

Surly Single Speed Spacer Kits. Set of five spacers for converting to singlespeed on Shimano freehub bodies Includes stainless steel lockring Item … read more

Currently Sold Out

10% offretail $45.00 Ends 12/10! $40.50 + ships free

InfoInfo
Surly Single Cassette Cog 20t
Surly Single Cassette Cog 20tSurly

Surly Single Speed Cogs. Photo for color and material reference only Fit Shimano freehub splines SCM 415 hardened CroMoly steel … read more

StarStarStarStarStar 5 of 5 ( 5 ) 5 of 5 stars average ( 5 reviews )
Currently Sold Out

10% offretail $35.00 Ends 12/10! $31.50 + ships free

InfoInfo
Surly Single Cassette Cog 22t
Surly Single Cassette Cog 22tSurly

Surly Single Speed Cogs. Fit Shimano freehub splines SCM 415 hardened CroMoly steel Designed as a singlespeed cog, but may also … read more

StarStarStarStarStar 5 of 5 ( 5 ) 5 of 5 stars average ( 5 reviews )
Currently Sold Out

23% offretail $35.00 Ends 12/10! $27.00 + ships free

InfoInfo
Surly Single Cassette Cog 16t
Surly Single Cassette Cog 16tSurly

Surly Single Speed Cogs. Fit Shimano freehub splines SCM 415 hardened CroMoly steel Designed as a singlespeed cog, but may also be stacked and used … read more

StarStarStarStarStar 5 of 5 ( 5 ) 5 of 5 stars average ( 5 reviews )
Currently Sold Out

10% offretail $35.00 Ends 12/10! $31.50 + ships free

InfoInfo
Surly Single Cassette Cog 17t
Surly Single Cassette Cog 17tSurly

Surly Single Speed Cogs. Fit Shimano freehub splines SCM 415 hardened CroMoly steel Designed as a singlespeed cog, but may also be stacked and used … read more

StarStarStarStarStar 5 of 5 ( 5 ) 5 of 5 stars average ( 5 reviews )
Currently Sold Out

10% offretail $35.00 Ends 12/10! $31.50 + ships free

InfoInfo
Surly Single Cassette Cog 15t
Surly Single Cassette Cog 15tSurly

Surly Single Speed Cogs. Photo for color and material reference only Fit Shimano freehub splines SCM 415 hardened CroMoly steel … read more

StarStarStarStarStar 5 of 5 ( 5 ) 5 of 5 stars average ( 5 reviews )
Currently Sold Out

10% offretail $35.00 Ends 12/10! $31.50 + ships free

InfoInfo
Surly Single Cassette Cog 14t
Surly Single Cassette Cog 14tSurly

Surly Single Speed Cogs. Photo for color and material reference only Fit Shimano freehub splines SCM 415 hardened CroMoly steel … read more

StarStarStarStarStar 5 of 5 ( 5 ) 5 of 5 stars average ( 5 reviews )
Currently Sold Out

10% offretail $35.00 Ends 12/10! $31.50 + ships free

InfoInfo
Surly Track Cogs - 3/32" - 17t Silver
Surly Track Cogs - 3/32" - 17t SilverSurly

Surly track cogs are threaded the same as a BMX freewheel (1.375 x 24 tpi right-hand threads). This means that they will fit on single-speed rear hubs … read more

StarStarStarStarStar 5 of 5 ( 2 ) 5 of 5 stars average ( 2 reviews )
Currently Sold Out

10% offretail $35.00 Ends 12/10! $31.50 + ships free

InfoInfo
Surly Track Cogs - 1/8" - 17t Silver
Surly Track Cogs - 1/8" - 17t SilverSurly

Surly track cogs are threaded the same as a BMX freewheel (1.375 x 24 tpi right-hand threads). This means that they will fit on single-speed rear hubs … read more

StarStarStarStarStar 5 of 5 ( 2 ) 5 of 5 stars average ( 2 reviews )
Currently Sold Out

10% offretail $35.00 Ends 12/10! $31.50 + ships free

InfoInfo
Surly

Surly is a leading manufacturer of bicycle frames, and was one of the first Fat Bike manufacturers.

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Chainring Teeth

This should correspond to the number of cogs on the cassette.

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