TetraFender M2

What Our Gearhead® Experts Are Saying:

"I set up the TetraFender M2 in the long configuration for a wet spring ride, and it kept my back end surprisingly clean throughout. Switching to the short setup for drier days is quick enough that I just leave it on the bike year-round now."

Rear wheel spray on a mountain bike is relentless, and a rear fender is one of those additions that immediately changes how a ride feels from the saddle back. The Topeak TetraFender M2 mounts to the seatstays via hook and loop straps with no tools required, fitting seatstay widths between 95 and 125mm across all frame materials and finishes, with compatibility spanning 26 to 29in wheel sizes and tire widths up to 2.8in, covering the full range of modern trail and enduro geometry.

The two-piece adjustable design is what makes the TetraFender M2 worth running all season rather than just on the worst days. The long configuration handles saturated trails and genuine mud where full coverage is the priority, while the short configuration pulls back for dry and dusty conditions where clearance and airflow matter more than maximum protection. Fender length adjusts up to 3.2cm, and the aluminum struts keep the whole assembly dialed in close to the tire, so coverage is consistent regardless of which configuration you are running.

The polished underside resists mud adhesion between rides, which means the fender is not creating its own cleanup problem after a day in the loam. For riders who are out in mixed conditions across the full riding calendar, the TetraFender M2 is the rear-end solution that earns its place on the bike and stays there.