Rene Herse Smooth Fenders 650B for 48-52 mm tires (H80 650B XL)


A fender specially designed for ultra-wide 650B road tires, with a larger radius that fits perfectly over tires like the Rene Herse Switchback Hill 650B x 48 mm. To provide clearance for the chain with road cranks, fender width is limited to 62 mm, so this fender does not wrap quite as far around the tire as our fenders for narrower tires. It still provides better spray protection than any other fender we’ve tried.

Aluminum fenders keep you drier and your bike cleaner. The uninterrupted inside profile and rolled edges prevent water from coming out on the sides of the fenders. Rene Herse fenders are made to our specifications by Honjo in Japan, with longer blades for better coverage to keep your feet and drivetrain drier and cleaner. Special Rene Herse mounting hardware (included) ensures a rattle-free, secure attachment.

Also available with tubular fender stays that save 35 g without a loss in strength. 

Made in Japan.

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All fenders include everything you need to mount to a frame designed for fenders:

  • 2 fenders
  • 2 stays
  • 3 leather washers to go between frame/rack and fender
  • 4 extra-short 7 mm René Herse eyebolts (Daruma) to attach fenders to stays
  • 1 eyebolt (Daruma) to attach fender to fork crown
  • 4 R-clamps (to attach stays to threaded eyelets)
  • Detailed, illustrated mounting instructions

If your seatstay bridge has no mounting hole facing the fender, use the Honjo sliding bracket (available separately).

Not sure which fender size is correct for your bike? Click here for our recommendations.

  • 62 mm wide
  • 544 g
  • Front wheel coverage: 95 cm, 140°
  • Rear wheel coverage: 130 cm, 195°
  • Rolled edges keep water inside
  • Stiff aluminum construction is rattle-free