The 4130 is a fixed-gear and single-speed bike built on a double-butted 4130 chromoly steel frame and fork, chosen for strength without excess weight. It runs 38x700c tires on tubeless-compatible wheels with a sealed-bearing flip-flop hub, so you can run it fixed or freewheel. Redesigned geometry adds tire clearance, and fork and seat stay rack mounts make it a practical all-rounder. It suits riders who want a durable, low-maintenance city or gravel-leaning bike, and it competes with other steel single-speeds on frame quality and mounts rather than on gearing.
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Owners rate the 4130 highly, praising the steel frame's ride and durability and the bike's versatility for commuting and light gravel. Complaints center on the single-gear limitation and the weight of the steel build.
This is a fixed gear / single-speed bike built on a double-butted 4130 chromoly steel frame and fork. The geometry is redesigned for larger tire clearance. The frame has a "Wishbone" rear to fit 38x700c tires, and there are rack mounts on the fork and seat stays.
The tubeless-compatible wheels have 40 mm high-flange hubs with sealed bearings and come with 38x700c tires. The flip-flop hub includes a 16T freewheel and a fixed gear cog, so it can be ridden either fixed or single-speed. The handlebars are your choice of All-Road Flared Gravel Drops or Wide Risers.
A single-speed drivetrain is simple and easy to maintain. The bike is intended for city roads, gravel paths and light trails.
