Feature

●Shimano part: ABRIM31RJSST
●Roller Brake Unit
●No cooling fins
●Brake Power: Standard
●For SG-3R40 Hub
●Lock Nut 0.3 inch (8.2 mm) (3/8)
●Department Name: Unisex Adult


Description

HUB ROLLER BRAKE UNIT, NEXUS, BR-IM31 REAR W/O COOLING FIN, BRAKING POWER;STD, JPN-TYPE, FOR SG-3R40, LOCK NUT 8.2MM(3/8)



From the Manufacturer



SHIMANO BR-IM31-R Roller Brake, Rear Attachment, Brake Mounting Nut, 0.3 inches (8.2 mm) (BC3/8), ABRIM31RJSST NEXUSSHIMANO BR-IM31-R Roller Brake, Rear Attachment, Brake Mounting Nut, 0.3 inches (8.2 mm) (BC3/8), ABRIM31RJSST NEXUS

Product Specification

Model Number: BR-IM31-R

Series: Shimano products.

Rear: Yes.

Structure Type: Normal.

Stopping Power (*1): 0.9

Cooling Fin Diameter: 3.5 inches (90 mm)

Heat dissipation (*1): less than 1

No cooling fins: Available

Wheel size (inch): Tire outer diameter (mm): 26 - 28 inch: Yes.