Mountain Bike Frames

Mountain bike frames are sold on their own for riders building a custom bike or replacing a damaged frame. The first decision is compatibility, because the frame decides the wheel size, the type of suspension, the bottom bracket standard, the axle spacing and the brake mounts, and every part you move over must fit.

Material and style are the next questions. Aluminium frames are affordable and stiff, steel frames ride smoothly and are durable, and carbon frames are light but cost more. Hardtail frames have no rear suspension, while full suspension frames need a rear shock.

Geometry matters for how the bike rides. Head tube angle, reach and chainstay length change stability and handling, so compare them with a bike you know.

Frame size depends on rider height and the type of riding, and sizes vary between makers, so read the size chart closely. Axle standards have changed over the years, so check that your wheels fit, and check the disc brake mount standard, since adapters exist but add complexity. Internal cable routing looks clean but takes more time to set up. Look for a frame warranty and any crash replacement programme, since a damaged frame is expensive to replace.

Before buying, check the wheel size, size chart, axle standard, bottom bracket, headset, seatpost size, brake mount and whether a shock or hardware is included. If in doubt, ask a bike shop to check part compatibility before ordering.

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