For sale is a mechanically solid Klein Mantra rear triangle mountain bike frame.

Taken from a Mantra Carbon model, this will upgrade aluminum Klein Mantra main booms to a disc set up for all but the earliest Mantra Race frames. I’m happy to consult if needed.

Replaceable derailleur hanger is intact as is the front derailleur plate. All threads are good to go.

Rear triangle has v or 22mm Hayes mounts. calipers and whole brakes if interested.

Cosmetically, the frame has lots of scratches. Decals are worn but rear-facing ones look good overall.

Shipping is $40 via USPS Mail or FedEx and more for international shipments. HI, AK and PR buyers, please get a shipping quote.