IRC Boken 40

MEGA-GRIP FOR SERIOUS EXTREME GRAVEL RIDING

Ride on gravel, pavement, dirt, single track in the forest, wherever you go, this new generation tire has a unique center profile tread for smooth surfaces while side knobs provide traction and control in softer terrain.

  • Ultra gummy compound for an insane bite on nasty obstacles
  • Developed for Extreme Gravel Racing Or Riding
  • Tubeless Ready


IRC NO. SIZE BEAD INFLATION WEIGHT
19049k 700x40 ARAMID 45–60 490g
Select Size

Customer Reviews

Based on 7 reviews
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P
Paul Dunlap
The Best

The best tires from the best people! Love Pure Gravel!

J
Jim B
Boken at Gravel Worlds

Hot and dry conditions were the perfect setup for IRC Bokens! They had great bite on the loose sandy hills and floated across the newly laid gravel section. Hard packed MMR roads were no match for the file pattern main tread of the Bokens. These tires send it!

M
Mark Miller
PureGravel and IRC are 5-Star Plus!

I’ve run IRC tires for several years now and they have never let me down. I run the Boken Plus normally but opted to run straight Boken for Unbound 2024. The tires mounted perfectly and sealed without ever adding more air. The tires have just the right amount of bite for loose and dry and haven’t bogged down with mud. They spin up quick and feel great - smooth and fast. I’ve run IRC on road and gravel from 28mm - 47mm and would be hard to convince there’s a better tire. Well worth adding to any bike.

And PureGravel? They have ALWAYS gone out of their way to get orders right and shipped fast! Honestly, if I need to buy something I check to see if I can get it from PureGravel before I buy anywhere else. Thank you guys for being straight up awesome!

S
Stu

Awesome tires, price, snd very quick delivery! Thanks!

M
Mills
Best Gravel Tire

Probably the best gravel road tire. The file tread has low rolling resistance and you can tell because of a lack of rooster tail of dirt from the back tire. Your friends will want to ride with you because they don't get sprayed by dirt. The 40c version is primo for gravel. Bigger volume means less pinch flats. The side blocks are crucial for turning and when you get a little sideways. This is the best tire for gravel.