This Scott Foil had it’s aerodynamic credentials severely burned on the Hambini barbecue. Staggeringly, the frame was the user’s second. The first was found to be out of specification. This frame was also found to be out of specification.
Fresh from YouTube is another Hambini Bottom bracket install. This time in a Yoeleo R12. This is a revision of the R11 bike Frame that The Unabiker had issues with and it highlights the problems of frame tolerances. The bottom bracket is made to much tighter tolerances than the frames they are pushed into.
A Hambini viewer recently enquired about a bottom bracket for his Cannondale TopStone Gravel bike. This bike uses a BB30A83 bottom bracket. A design which is highly unusual, extremely rare and unique to Cannondale. From the frame centerline, the driveside and non drive side apertures have an asymmetrical offset – hence the “A” in BB30A83….
This video uploaded by youtuber Peak Torque shows a Hambini BB having it’s engineering tolerances judged. Some key points It’s a BB86 Shimano Racing Edition Bottom Bracket The bottom bracket tolerances are accurate to 0.005mm, that is less than the diameter of a human sperm cell. The eccentricity was found to be 0.010mm (0.0005inch), the…
This Bowman Bicycles Palace frame was sent in by a viewer who had a failed chanset, Further investigations showed a frame that was in a dangerous condition, showing numerous welding and machining defects. Some of those could have been catastrophic
Farsports are a chinese company that has been in the wheelset business for a number of years. Their products have been widely used amongst budget conscious riders wishing to get the best bang for their buck by buying directly from the far east.
A user from Australia sent these video clips in showing the before and after on his SRAM Quarq dub power meter crank set axle. As always, an unloaded test is not a good indicator of loaded performance but it does highlight good alignment Here is after