Cube Yellow - Blue Cube Acid 260 Disc bikes 2026

No half-measures, even for our junior bikes. That's why the Acid 260 uses the same mechanically formed, double-butted, heat-treated 6061 aluminium tubes as our adult range. Combined with our Agile Ride Geometry, it makes for a frame that'll allow your child's skills to develop as their confidence grows. And there's a replaceable gear hanger, too, so that a crash needn't be the end of the world. 
A trail-capable mountain bike scaled down to fit pint-sized riders, and designed to match their enthusiasm. The Acid 260's design echoes everything we've learnt from our adult mountain bike range, while carefully selected components ensure the best possible comfort and control for any adventure off the beaten path. 
Keen young riders will benefit from a bike that fits their needs – literally. The Acid 260 is every inch a trail-capable mountain bike, scaled down to perfectly fit pint-sized riders. With 80mm of bump-swallowing travel, the Suntour suspension fork improves comfort and control. Shimano's smooth and reliable 16-speed gears have the range to tackle any climb, and powerful disc brakes provide loads of stopping power. It's everything they need for trail adventures.