To remove the old bearings, thread the screw rod through the bottom bracket shell with the bearing puller rings positioned behind the cups on the inside, then tighten the rod so it draws the bearings out evenly from both sides. Working slowly and keeping the rod centred prevents the shell from getting scored or the bearing from binding halfway out.

Press-fit standards vary by bore diameter, such as BB86/92, BB30 and PF30, so it is important to check your frame's bottom bracket shell diameter against the cup sizes included before use. If you are unsure of your bike's bottom bracket standard, checking the frame manual or measuring the shell's inner diameter is recommended before you begin.

Basic mechanical comfort helps, since press-fit installation relies on keeping the cups square to the shell while tightening, but the guided screw-rod design makes this far more approachable than using a shop press. Most home mechanics who have handled a bottom bracket change before can use this kit successfully with a bit of patience.

As with any press-fit tool, applying force unevenly or forcing a mismatched bearing size can risk marking the bottom bracket shell, so always confirm bearing size and keep the tool square to the frame while tightening. Going slowly and checking alignment every few turns keeps the process safe for both alloy and carbon frames.

Since press-fit bottom brackets often need attention every year or two depending on riding conditions and monsoon exposure, owning this tool saves repeated bike shop labour charges for a job you can now do yourself in minutes. It is a solid one-time investment for anyone with a press-fit-equipped bike who services it regularly.

Yes, this kit is sold as a genuine LeBycle tool through DoGoodCo with metal cups and a solid screw rod built to handle repeated home installations. Should you receive a defective part, our support team will help with a replacement as per store policy.