IRC Heavy Duty Tube Size:80/100x21 (Front) Offered in both Black and

Offered in both Black and Navy

Most MX34 tire sizes are for bikes running upgraded 21/18 or 19/16 wheelsets

The design ensures that the chain’s inner plates make contact with the rubber rings before the rollers fully engage

any MTB disc spacer will fit

4mm disc brake

IRC Heavy Duty Tube Size:80/100x21 (Front) Offered in both Black andIRC Heavy Duty Tube These tubes will fit most bikes but you need to select the correct rim size for correct fitment. Please see sizing options below for your correct application! Rear Tires Size 100 100x18 tube will fit 100 100x18 and 90 100x18 rear tires. Size 110 100x18 tube will fit 110 100x18 rear tires. Size 70 100x19 tube will fit 70 100x19 rear tires on bikes like the Surron Light Bee, Talaria Sting MX3, MX4, and select E Ride Pro Models. Size