Documents leaked by Durianrider indicate that Specialized is about to launch an extensive product recall on their S-Works Tarmac SL7 series of bikes owing to a potential failure of the steerer fork.
A high end bike shop in London decided it would be a good idea to fix a customer’s Parlee Z5 bike frame by using Epoxy to glue some Campagnolo bottom bracket cups in to the bike frame. What followed was a customer who was repeatedly going through bottom bracket cups – often in the space […]
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.
This Teardown covers the Engineering behind the ROTOR 2InPower 30mm Crankset. It focuses on the materials, manufacturing, tolerances,, bearing preload system and system stiffness.
T47 is examined in engineering detail. Some of the quirks associated with the standard, the weights and the frame geometry limitations are discussed. Trek, Felt and Factor variations of T47 dimensional standars are covered.
The axes and planes that would affect the handling and braking of the bike are well above average. Machining quality of the parts was excellent. You can see the video of the review below You can get the bike frame from the Trifox Website
Canyon’s new aeroad has been plagued with failures around the seatpost. Now sales have been suspended and they are looking to introduce a new design.
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.
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 […]
If you are about to buy a Cervelo bike, watch this video. It shows the appalling tolerances the bike frames are made to. The bottom bracket pressfit specification is so bad, neither NTN or SKF will warranty their bearings in it. This particular frame had misalignment between the two halves of the frame body.