Shimano bottom bracket Altus BB-CT91/LP 26, new
length 116 mm,
for a frame width 70 mm,
italian thread 36 x 24T,
weight 370 grams
Assembling or replacing a Shimano bottom bracket requires specific tools and knowledge of the procedure to follow, it is an operation to be performed by an experienced person.
It is assembled in a 70 mm wide frame, threaded with a 1.37x24 pitch (BSA standard) and Shimano cranks whose tightening interface is square.
This type of Shimano bottom bracket does not require adjustment or maintenance. A simple cleaning with soapy water to remove the accumulation of soil or pollutants at the clamping interfaces is recommended. The bearings are in a sealed cartridge, they can neither be disassembled nor adjusted.
The axle bearings of the Shimano bottom bracket may take up movement when the cranks are impacted or when the quantity of grease becomes insufficient inside between the balls and in the bearing tracks, in this case it will be necessary to replace the bottom bracket.
We offer a large number of components compatible with this Shimano bottom bracket such as fixing screws for cranks, cranksets, chains and derailleurs available in stock coming from more than 350 brands available in stock at the best price.
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