Welcome to Silverfish. This site uses cookies. Read our policy.

e*thirteen BSA Bottom Bracket 100mm
inc. VAT
3 in stock
  • Fits 68/73mm / 83mm or 100mm shells
  • Cup material: EXA+ aluminium
  • Fits XCX / TRS / LG1 cranks


Our threaded BBs adapt e*thirteen cranks with 30mm spindle to standard BSA threaded BB shells. Custom seals, grease fill and angular contact bearings are designed from the ground up for top-notch durability and smooth spinning. All of our BBs include our 1 year, no questions asked bearing guarantee.

  • Cup material: EXA+ aluminium
  • Custom angular contact bearings
  • Fits 68/73mm, 83mm or 100mm shells (select required size)
  • New co-molded outer seal for better protection from water intrusion
  • Improved bearing quality!
  • BSA threaded BBs fit XCX, TRS and LG1 cranks
  • Spindle spacers and wave washer are not included and are superceded by the APS adjuster

Other Colours

Product Reviews

Finance Calculator


Bottom Bracket Standards Explained

Click below to download the PDF


You can also find more info on BB standards here: thehive.dozuki.com/Guide/Bottom+bracket+standards/17

My bearings wore out, why?

Bearings wear for a variety of reasons; by far the biggest culprit is contamination. You can prolong bearing life by not power-washing or hosing your bike off. Water sitting in your BB shell will eventually contaminate your bearings so be sure to drain and dry your frame after wet rides. All of our BB bearings are easily serviceable, so we recommend cleaning and re-greasing them a few times a year dependent on conditions. If things go to hell in a hand-basket quickly, we offer a 1 year no questions asked warranty on all our bearings, so we've got you covered.

You might also be interested in: