TetraFender R2

What Our Gearhead® Experts Are Saying:

"I ran the TetraFender R2 through most of the spring training block, and it held its position on the seatstays without any adjustment needed, even after weeks of use. The long configuration kept me genuinely clean on the worst days, and trimming back to the short setup when things dried out took about thirty seconds."

Rear wheel spray on a road bike during a long training ride is not just uncomfortable, it is the kind of thing that cuts sessions short and turns a good block of miles into a miserable slog. The Topeak TetraFender R2 mounts to the seatstays via hook and loop straps with no tools required, fitting disc brake compatible frames with seatstay widths between 55 and 85mm and designed for 700c wheel sizes with tire widths from 25 to 32mm, covering the range of modern road and endurance geometry running standard to slightly wider rubber.

The two-piece adjustable design is the feature that makes the TetraFender R2 worth keeping on the bike beyond the worst of the wet season. The long configuration deploys full coverage for rain-soaked training days where staying clean is the priority, while the short configuration pulls back for damp but manageable conditions where a trimmer profile makes more sense. The engineering-grade polymer and metal struts maintain close positioning to the tire across both configurations, so coverage stays consistent regardless of which setup you are running.

At 319g the TetraFender R2 adds minimal weight to the overall build, and the polished underside resists road grime adhesion so the fender does not become its own maintenance burden after a week of wet riding. The included 3M reflective decals provide passive visibility when training rides push into low light without requiring any additional accessories. For road riders committed to consistent mileage through shoulder seasons, the TetraFender R2 is the rear-end solution that makes that commitment a lot more comfortable.