SB20 - Replacing the Bottom Bracket
If you ride an indoor bike long enough, you will need to replace your bottom bracket. Sweat, grit and worn bearings eventually win the day. Let's see how to replace an SB20 smart bike bottom bracket . When to Replace Bad bottom brackets are pretty easy to identify. They will exhibit one or more of the following behaviours: Grinding that feels like sand in the bearing when rotated slowly. Excessive play when pushing the cranks in and out. Wobbling when riding - especially when pushing hard. What is NOT bottom bracket failure Clicking noises. Instead: Check pedals and look for loose crank bolts. Rubbing noises. Instead: Look for problems around plastic covers. Noises that get loader as you pedal faster . Instead: Check the flywheel. Tools Needed Car mechanics can rejoice. You have most of the required tools. Tool Summary: Heat gun for loosening red Loctite that holds drive side bottom bracket fastener (alternative: hair dryer). NLGI #2 automotive bearing grease (alternative: bik