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Two machined aluminum cups thread together ensuring the bottom bracket remains stable in the frame increasing bearing life and simplifying maintenance
This allows you to mount to a B-RAD base in addition to mounting to saddle rails or directly around frame tubing
WHEEL TYPEFR medium
Weight: 62g Lumens Rear 15 Recharge Type Not Rechargable Battery AAA Weight 62
Surly Single Cassette Cog 3/32" Splined 18t MFPN=21042 Two machined aluminum cups threadSurly 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 Tooth Count 18 Cassette Body Type Shimano HG 7 Speed Drivetrain Speeds Single Speed 3 32" Material Steel
