General Information Cassettes with more gears are not necessarily wider than cassettes with fewer gears. To encourage upgrades without the need to replace the rear hub, brands try to keep…
Description of the Problem: When the rider is exerting a lot of effort uphill (usually out of the saddle), the chain slips involuntarily and switches to a different gear even…
Condensed answer: Rear BMX hubs have 110mm O.L.D. This makes the installation of a cassette or a multi-speed freewheel hub impossible unless the frame is modified. Another obstacle is the…
Condensed Answer: A 9-speed Shimano or SRAM MTB cassette can be installed on a 10-speed Shimano or SRAM MTB hub right away. A 9-speed cassette is wider than a 10-speed…
Condensed Answer: A 9-speed SRAM or Shimano cassette can be installed on an 11-speed MTB SRAM or Shimano hub right away. A 9-speed SRAM or Shimano cassette will require a…
Condensed Answer: Shimano and SRAM 10-speed cassettes can be installed on 8-speed hubs because 8,9 and 10-speed cassettes have similar widths. However, a Campagnolo 10-speed cassette won't fit on an…
Condensed answer: An 8-speed cassette can be installed on an 11-speed hub. If the hub is designed for an MTB, the cassette should fit right away. If the hub is…
Condensed Answer: By default, dirt jumpers have a single-speed drivetrain and rear-facing dropouts complicating the installation of a transmission. However, with the right adapter, one can add a rear derailleur…
Bicycles gears greatly increase pedaling efficiency by maximizing the cyclist's mechanical advantage according to the terrain. One of the key features is energy preservation when facing steep hills and aggressive…
Geared entry-level bikes often come with a triple crankset combined with 6,7 or 8 gear cogs at the back. The combinations provide 18-24 theoretical gears, but not all of them…