New 25+ 29Er Road Tires. I've had no problem with 35mm tires on road rims. Gettin ready to purchase a 29er.( my first mountain bike. By signing up you agree to allow schwalbe tires north america to send you emails and other promotional materials. 32c continental gp5000 or bontrager line elite 30? 29Er Road Tires - Gravel Bike Vs Hardtail 29er Mountain Bike The Pro S Closet I've had no problem with 35mm tires on road rims.