Olsen Bikes have Titanium bikes developed around Pinion gearbox, Rohloff Speedhub and Gates CDX Carbondrive belts.  Whether you are Mountain Biking, Gravel Racing or want to Cyclocross Olsen have a bike for you. The RocknRollout Dropouts tensioners run singlespeed, beltdrive, derailleur, Kindernay XIV and Alfine 11 speed internal Hub gears.