Challenge Latex Inner Tube Size:700 x 28-35c while the improved elastic waistband

while the improved elastic waistband ensures a secure fit

Shimano 105 FC-R7000 Crankset

the riders can move over a long range to find that extra performance

2-Point Strap System

carbon cage

Challenge Latex Inner Tube Size:700 x 28-35c while the improved elastic waistbandChallenge produces the only seamless 'one piece' latex inner tubes on the market providing a smooth, balanced ride with no pucker or bump like those found on other tubes. Latex tubes are lighter, thinner and more flexible than a butyl tube, increasing your comfort, lowering your rolling resistance, and helping to prevent flats. The tube also includes a removable core Presta valve making them compatible with both inline and external valve extenders.