MenuMenuModern Bike
SortSort

Showing 21 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 )

your price $35.00 + ships free

BuyBuyPART NUM 514377
Wolf Tooth Components Single Speed Aluminum Cog: 18T
Wolf Tooth Components Single Speed Aluminum Cog: 18T

Wolf Tooth Components Single Speed Aluminum Cogs. A high quality alumnium single speed cog that strikes the perfect balance between weight, durability … read more

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

your price $39.95 + ships free

BuyBuyPART NUM 529435
Problem Solvers Singlespeed Cog 17t fits PS Carrier or 6-bolt hubs
Problem Solvers Singlespeed Cog 17t fits PS Carrier or 6-bolt hubs

Problem Solvers Single Cogs Fits the Problem Solvers SS Cog Carrier Also 6-bolt rotor mount compatible for fixed gear use (see instructions for applicable … read more

17% offretail $17.99 your price $14.99

BuyBuyPART NUM 784006
Problem Solvers Singlespeed Cog 18t fits PS Carrier or 6-bolt hubs
Problem Solvers Singlespeed Cog 18t fits PS Carrier or 6-bolt hubs

Problem Solvers Single Cogs Fits the Problem Solvers SS Cog Carrier Also 6-bolt rotor mount compatible for fixed gear use (see instructions for applicable … read more

your price $19.99

BuyBuyPART NUM 151171
Wolf Tooth Components Single Speed Aluminum Cog: 18T, Compatible with 3/32" Chains, Purple
Wolf Tooth Components Single Speed Aluminum Cog: 18T, Compatible with 3/32" Chains, Purple

Light, strong with extra tall teeth, the Wolf Tooth Aluminum Single Speed Cog is a lightweight option for single speed cogs that's offered in a variety … read more

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

your price $39.95 + ships free

BuyBuyPART NUM 720757
Halo Fat Foot Cog, 1/8" - 18t, Chrome
Halo Fat Foot Cog, 1/8" - 18t, ChromeHalo Wheels

CNC machined CrMo cog with 7mm thick Hyperglide-spline, 1/8" chain compatible Extra wide spline interface prevents cog from deforming freehub … read more

your price $27.95

BuyBuyPART NUM 758444
Wippermann ConneX Bosch Z15 E-Bike Sprocket - 18t
Wippermann ConneX Bosch Z15 E-Bike Sprocket - 18t

Longer life and better wear resistance than stock sprockets Compatible with Performance, Performance CX and Active Bosch drive systems … read more

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

10% offretail $19.95 your price $17.95

BuyBuyPART NUM 628922
Dimension 18t Splined Cog for Singlespeed
Dimension 18t Splined Cog for SinglespeedDimension

Dimension Steel Cogs are splined for BMX and singlespeed hub compatibility. 3.0 Thickness (1/8" Chain) 2.3mm thickness unless noted Works best with … read more

your price $7.99

BuyBuyPART NUM 162420
Wolf Tooth Components Single Speed Stainless Steel Cog: 18T, Compatible with 3/32" Chains
Wolf Tooth Components Single Speed Stainless Steel Cog: 18T, Compatible with 3/32" Chains

Designed to be an extra durable single speed cog option, the Stainless Steel cog features extra tall teeth and a wide 4.5 mm base to limit freehub gouging. … read more

your price $79.95 + ships free

BuyBuyPART NUM 201715
Endless Bike Kick Ass Cog, 18t - Black Ano
Endless Bike Kick Ass Cog, 18t - Black Ano

Machined 7075-T6 aluminum Singlespeed cogs Wide base prevents the cog from digging into freehub bodies and reduces flex Splines are … read more

your price $50.00 + ships free

BuyBuyPART NUM 271435
Endless Bike Kick Ass Cog, 18t - Blue Ano
Endless Bike Kick Ass Cog, 18t - Blue Ano

Machined 7075-T6 aluminum Singlespeed cogs Wide base prevents the cog from digging into freehub bodies and reduces flex Splines are … read more

your price $50.00 + ships free

BuyBuyPART NUM 998782
Soma Track Kog - 1/8 X 18 Teeth - Black
Soma Track Kog - 1/8 X 18 Teeth - Black

CNC-machined from hardened chromoly with phosphate black finish Threaded track cog for 1.37"x24tpi (right handed) threads Item Specifications … read more

your price $29.99

BuyBuyPART NUM 958511
Wolf Tooth Components Single Speed Aluminum Cog: 18T, Compatible with 3/32" Chains, Blue
Wolf Tooth Components Single Speed Aluminum Cog: 18T, Compatible with 3/32" Chains, Blue

Light, strong with extra tall teeth, the Wolf Tooth Aluminum Single Speed Cog is a lightweight option for single speed cogs that's offered in a variety … read more

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

your price $39.95 + ships free

BuyBuyPART NUM 178234
Endless Bike Kick Ass Cog, 18t - Red Ano
Endless Bike Kick Ass Cog, 18t - Red Ano

Machined 7075-T6 aluminum Singlespeed cogs Wide base prevents the cog from digging into freehub bodies and reduces flex Splines are … read more

your price $50.00 + ships free

BuyBuyPART NUM 296307
Endless Bike Kick Ass Cog, 18t - Silver Ano
Endless Bike Kick Ass Cog, 18t - Silver Ano

Machined 7075-T6 aluminum Singlespeed cogs Wide base prevents the cog from digging into freehub bodies and reduces flex Splines are … read more

your price $42.99

BuyBuyPART NUM 195531
Onyx Aluminum 18t 3/32 Cog Black
Onyx Aluminum 18t 3/32 Cog Black

Onyx Cogs Item Specifications Teeth (teeth): 17 Material: Aluminum Cog Teeth (teeth): 17 Cassette Body Type: Shimano 1 … read more

Currently Sold Out

your price $35.00 + ships free

InfoInfo
Wolf Tooth Components Single Speed Aluminum Cog: 18T, Compatible with 3/32" Chains, Red
Wolf Tooth Components Single Speed Aluminum Cog: 18T, Compatible with 3/32" Chains, Red

Light, strong with extra tall teeth, the Wolf Tooth Aluminum Single Speed Cog is a lightweight option for single speed cogs that's offered in a variety … read more

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

your price $39.95 + ships free

BuyBuyPART NUM 691784
Sturmey Archer 3-speed Dished Cog - 3-spline - 1/8" - 18t Chrome
Sturmey Archer 3-speed Dished Cog - 3-spline - 1/8" - 18t Chrome

3-spline steel cogs for use with Sturmey 3-speed (and 5sp) internal gear rear hubs Flat or dished for tuning chainline. Xylan coating for … read more

Currently Sold Out

your price $6.99

InfoInfo
Reverse Single Speed Cog 18T
Reverse Single Speed Cog 18T

CrMo cog with 7mm thick Hyperglide-spline, 1.8mm tooth thickness Extra wide flange prevents cog from deforming freehub body splines … read more

your price $11.99

BuyBuyPART NUM 742518
Gusset Double Six Cog, 18t
Gusset Double Six Cog, 18t

CNC machined CrMo 5/64" cog with 7mm thick Hyperglide-spline, 9sp chain compatible Extra wide spline interface prevents cog from deforming … read more

Currently Sold Out

your price $21.95

InfoInfo
Surly

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

See all Surly

Halo Wheels

"We didn't invent the wheel, we simply made it better."

See all Halo Wheels

Dimension

Dimension makes quality components to repair or custom-fit the vast majority of bikes being ridden today, and provide the accessories that make them fun to ride.

See all Dimension

We define color as the main color of the item. It may have accents or highlights in other colors.

These models are available for online purchasing and can be shipped directly to you.

Chainring Teeth

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

Our Lowest Price - This product is ineligible for additional discounts or rebates.

This is the part number or identifier for this item from the manufacturer

Buy this product and your entire order ships for free.

Some orders are inelligible for delivery discounts. See offer details for disqualifying products and destinations.