Exotek X1/X12 heavy duty 48 pitch spur gears
Also from Exotek is their new range of heavy duty 48 pitch spur gears for the Xray X1/X12 gear diffs. Provides increased durability over the stock 64 pitch gears, especially needed in open wheel F1 and outdoor race settings. They are made in England from black acetal (delrin) with each being CNC machined for ultimate trueness. A direct fit with the stock hardware they are available in 5 versions from 61T to 65T.
Source: Exotek [exotekracing.com]