Cassette: a gaggle of stacked sprockets or gears around the rear wheel of the bicycle with a rear derailleur. There can be between five to twelve gears in back on the cassette. Tire: as in common use. Commonly pneumatic. A tubular tire is glued to your wheel rim; most tires https://bikeenginedetails70245.dsiblogger.com/67986833/the-5-second-trick-for-engine-bike-oil