Just when you thought expander cogs couldn’t get much bigger, along comes this beast.

OneUp Components adds 45-tooth XTR 9000 cog, patents cassette adapters

I quite like the look of it TBF. Being able to run a 34 and ride a wider range or terrain without my legs falling off would be great.

I like “claimed” 12.5% increase in range. Does no one at Bikerumor have a calculator?

Given they’re basing the calculation on going from a 40T cog, that seems about right.

Mcnulty is humoured by use of the word ‘claimed’, not questioning the number.

ah, <whoosh> for aracer

Christ i remember when a front ring was 44t now a rear is 45t when will it end.