Description The Challenge Gravel Grinder is designed for gravel-specific 'cross racing or riding. Featuring a center file tread paired with raised side knobs for low rolling resistance on straights confident traction while cornering. With unpredictable terrain in mind, Challenge also reinforces the nylon casing on the Gravel Grinder with its Double Puncture Protection System (PPS2) to get you through your rides and races without losing time changing flats. This clincher model was designed to be the best option for cyclists racing on aggressive terrain.
The Challenge Gravel Grinder Pro Tire measures 36mm wide. Claimed weight: 375g.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.
Reviews Ordered by Most Relevant First
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Perfect for gravel!!
3 of 3 customers found this review helpful.
I used these tires for the Dirty South Roubaix gravel race, and they performed flawlessly!! Strong, durable, and took an absolute beating on different terrains and worked perfect! Would highly recommend for choppy and gnarly gravel events.
Reviewed 3/25/2019
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Favorite gravel tire but tubeless is difficult to mount
by Mike
Competitive Racer
Kansas
1 of 1 customers found this review helpful.
This is a great tire, I have been riding it for 5+ years for gravel racing. Just started using it tubeless on Zipp 303 firecrest and 303s wheels and it required my park tool metal tire levers to mount, extremely tight fit. Not confidence inspiring if I needed to tube the tire during a race. I'm considering pre stretching a pair and then trying the mounting again, otherwise its just not a race tire option.
Reviewed 7/17/2022
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Great riding tire but very difficult install
by Anonymous
Cycling Enthusiast
San Rafael, CA
11 of 12 customers found this review helpful.
These tires roll fast and grip well in the dirt. My only gripe is that they were very difficult to get on the rim. Having had may years of experience as a bicycle mechanic, if you asked me to count the top 5 hardest tires to mount ever, but the time I got to these I'd be holding up my middle finger. I fear if I got a flat while riding, I would not be able to change it in the field.
Reviewed 6/17/2019
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