Hardtails represent the true spirit of mountain biking, encouraging us to get creative with our day-to-day riding and test our mettle against tricky terrain. Whether we're building up our next dream hardtail or a versatile backup bike, the Santa Cruz Chameleon Frame sits right at the top of our list.

The Chameleon namesake represents this bike's versatility, and that's where the beauty lies. We can shred backyard dirt jumps and pump tracks one day, and embark on a 20-mile backcountry ride on the next. That's the beauty of the Chameleon, is that it adapts to almost any type of riding without skipping a beat. It can be built as a full-fledged 29er or with a mixed 29/27.5 wheel setup, with this particular frame ready to accept mixed wheel sizes out of the box.