LOVE, 26ka, alebo menej jednoprevodník je pre mňa trialový. Ak to roztočí na 25km/h tak je frajer 
Lying at the heart of the Truvativ HammerSchmidt two-speed crankset is a set of planetary gears. A trio of pawls engages or disengages those gears instantly with a flick of the trigger-style shifter to swap between gear ratios of 1:1 or an 'OverDrive' ratio of 1:1.6.
Mount up the included 22T proprietary chainring and you effectively have a 22/35T combo (or a 24/38T with the alternative 24T ring), all without the need for a conventional front derailleur.
Pri cadencii 90rpm prevode 38T - 11T mas 39.3km/h na 26"/2.2" kolese
Tak asi trosku iny frajer je kazdy kto to ma
http://www.pinkbike.com/news/Truvativ-HammerSchmidt-Preview-2008.html
ja odpadavam z niektorych heftov 
