Deliveries to EU Countries

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From July 01 2021, VAT regulations within EU countries will be changing. All items sent to EU countries will incur VAT and deliveries of a value below €150 will require small businesses to be registered for VAT in EU countries. Due to this regulation change, from 20 June 2021, there will be a minimum order […]

Teardown: Campagnolo Ultra Torque Crankset Mechanics explained in Depth

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Campagnolo Super Record Ultra Torque

Campagnolo cranksets have a reputation of being well engineered and robust but they are not without their problems and quirks. This post explains one of those in detail which surrounds the myths of the preload system, the “safety clip”, the system stiffness (or lack of it) and the involved nature of a bearing replacement. Campagnolo Ultra Torque is found on many of the upper range of Cranksets including the Super Record and Record.

SRAM GXP: An Engineering Guide to abysmal manufacturing

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This article will cover the technical and engineering aspects of SRAM GXP. Sram GXP is a very popular crankset standard used by SRAM. It offers an industrial based bearing arrangement and was touted as having the lowest weight and rolling resistance of any crankset bottom bracket standard. The engineering will be analysed in detail. Currently […]

Bike Bearing Grease: A Practical Guide to Bearings and Assembly for Bikes

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ball bearing in blue grease screen xl

Table of Contents IntroductionLubricating Grease (Bearings)Assembly Grease (Anti Seize) Grease as a Water repellantGrease Composition (Lithium, Teflon, Copper etc)Carbon Grease / Fiber PasteRecommendationsRecommended brands Introduction Grease is an often talked about but little understood. It can have a significant impact on performance on a bike specifically in the area of transmission frictional losses (watts). This […]

Bicycle Wheel Power Data 50km/h

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winspacehyper

Over several years, bike wheels have been tested for aerodynamic performance. To date, this is the largest independent dataset available. Popular brands such as DT Swiss, SwissSide, Shimano, Mavic and Bontrager have all been tested. This dataset was originally derived from wind tunnel test data but has latterly moved over to Dinitriev number with a […]

Bicycle Wheel Power Data 30km/h

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winspacehyper

Over several years, bike wheels have been tested for aerodynamic performance. To date, this is the largest independent dataset available. Popular brands such as DT Swiss, SwissSide, Shimano, Mavic and Bontrager have all been tested. This dataset was originally derived from wind tunnel test data but has latterly moved over to Dinitriev number with a […]