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ISIS Drive

Home > Track Bottom Brackets > ISIS Drive > Price: £100.00 - £249.99 (x)
Bottom Brackets come in a variety of sizes, types and tapers, each manufacturer clearly specifies which Bottom Bracket type would be compatible with their Chainsets and details are included in the product descriptions on our website so this makes choosing the right BB easy. The manufacturer's guidelines will also provide you with the correct chainline based on a standard rear hub width, so it is important to follow these recommendations in terms of size/type, however you can obviously choose a different brand should this be desirable.

The main issue should be with the thread on your frames BB Shell (where the BB connects to the frame), this will either be BSA (British thread) or Italian thread, BSA is 68mm standard whereas Italian is 70mm but again check the manufacturers guidelines for your frame and product descriptions on our website for the frame bb shell type and bb type.

ISIS Drive Bottom Brackets

ISIS Drive, the International Splined Interface Standard, is an open standard splined specification for the interface between a bicycle crankset and the bottom bracket spindle. It was created by King Cycle Group, Truvativ, and Race Face in response to the proprietary Shimano Octalink splined bottom bracket standard. Because the Shimano splined interface is covered by patents, the ISIS Group created the standard and put it in the public domain so that other companies could make interoperable components. As the standards are separate, parts made for one are incompatible with those made from the other; an Octalink-standard bottom bracket (8 spline) cannot connect to an ISIS crankset (10 spline) and vice versa.

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