Profile Outboard Euro Bottom Bracket

J&R Helpful Hint- The Outboard bottom bracket kit includes two shims (.030’ and .015’). The shims may need to be installed if bottom bracket width exceeds 68mm. These shims ensure that the outboard sealed bearings come in contact with the inner aluminum tube spacer. The bottom bracket will not function properly if this is not done. All bottom bracket widths vary due to paint, machining, anodizing, etc… Add shims inside of bearings along with tube spacer as needed. You will also need to determine the spindle length needed. Due to the wider bearing cups, J&R recommends the longer 6" spindle. Your crank arms need to have more than 50% of the inner-arm area resting on the spindle after installation to remain tight while riding. Most frames will require the longer 6" spindle, a few frames will still use the traditional 5 5/8, 5 3/4 spindles. Contact PROFILE Racing at 727 391 7370, www.profileracing.com for more info, if needed.