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Description

Surly Single Cassette Cog 3/32" Splined 21tSurly Single Cassette Cog 3 32" Splined 21t. Surly Single Speed Cogs. Designed as a singlespeed cog but may also be stacked and used with 9 speed shifter. Multi gear use will result in slower less crisp shifting than cogs designed for multi gear systems Fit Shimano freehub splines SCM 415 hardened chromoly steel Photo for color and material reference only TECH SPECS Tooth Count 21 Cassette Body Type Shimano 7 Speed Drivetrain Speeds Single Speed 3 32"

description clamp 8mm compatibility TTX Air

Includes self-extracting aluminum machined dust caps and BB bolts

Color Blue Defined Color Blue

}Shimano STEPS SC-E6100 Bracket Unit

Forged aluminum arms provide strength and weight savings

Brake Lever Actuation Short Pull Super SLR Pad Type Cartridge Brake Position Rear Brake Mount Type Mid Reach Caliper (47mm - 57mm) Defined Color Black

Patented Vector Wing mounting points away from sit bones to reduce pressure and hot spots

Color Gray Links (links) 126 Drivetrain Speeds 11 Half Link Chain No Chain Connection Type Quick Link Designed for ebike Yes Defined Color Gray

}Promax CF-2 Crankset - 160mm 24mm Spindle 2-Piece 68mm English BB Included Black

}Shimano R180S/S Disc Brake Adaptor for 180mm Rotor 51mm Caliper 51mm Frame

These bearings provide extremely low friction improved power transfer and a service life that far exceeds traditional steel bearings

Ride it on-road and off-road without restrictions

Exchange/Return Notes