Topstone

Aluminum gravel frame built with SmartForm C2 alloy for all-day gravel riding and bikepacking. Tapered head tube, BSA threaded BB, 12x142mm thru-axle, flat-mount disc brakes, and StraightShot internal cable routing. Clearance for tires up to 45mm with full carbon fork featuring three mounting points per leg.

Profiles who use this(1)

Lachlan Morton

Connection note

Unbound XL 2025 gravel setup

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Last updated March 22, 2026