On One Whippet T800 Carbon mountain bike frame XL 29er Hardtail Boost. Has one tiny blemish, a very small chip to lacquer top coat on back of down tube, see last pic. Carbon Toray T800 frame. Brake type: disc, post mount only. Axle type: Boost, 148mmx12mm rear spacing. Recommended fork travel range: 100-120mm. Max tyre clearance: 29er – 2.35.