High efficiency

Rear Axle: 3/8-inch Threaded x 135mm

these 10-45 and 10-51T cassettes deliver advanced shifting performance

SPD cleat system with SM-SH51 cleats and 1mm spacers included

TANNUS Armour Puncture Protection - 26x4.0-4.8 - w/o Tubes recumbant High efficiencyTannus Armour is the ultimate in tire protection and performance for all levels and styles of riding. Sitting between your tire and inner tube, the Tannus Armour provides 15mm of puncture protection on the top, as well as 2mm of sidewall protection from sharp objects and rocks. Whether you are a city biker, adventure tourer or prefer the off road, downhill or gravel trails, Tannus Armour gives you increased grip and vibration dampening for a smoother,