CUSH CORE Tire Insert XC Single.FEATURES:- Lightweight version designed for cross-country racing, light trail riding, and/or less aggressive rider.-Absorbs Impacts and trail chatte.-Sidewall support allows low tire pressure.-Rim protection and flat preventio.-Lightweigh.-Suitable tire size:1.8´´ - 2.4.-Suitable inner rim width:22 - 32 m.-Weight:140 g (27.5´´), 150 g (29´´.-Scope of delivery:1x tire insert, 1x 44 mm tubeless valve, valve core remover and rim sticker.-Note:For 650b or 700c Gravel wheels with a 47c tire or wider choose the 27.5 (650b) or 29 (700c) XC model.