The Q-Tubes Standard Presta Tube is designed for road, touring, and cyclocross applications. Removable valve core. Presta (French) valve.
- Specifications
- ISO Diameter: 559 / 26″ mtn
- ISO Width (mm): 53 mm, 54 mm, 55 mm, 56 mm, 57 mm, 58 mm
- Labeled Size: 26 x 2.1-2.3
- Tube Compound: Butyl
- Valve: Presta
- Valve Core: Removable
- Valve Shaft: Threaded
- Weight: 202g
Before You Order
Verify part number TU6858 exactly Match the listed product details to the part you are replacing before ordering. Compare dimensions, specifications and fitment information with your RV or component.
Frequently Asked Questions
What part number should I verify before ordering?
Verify TU6858 on your existing part, documentation or equipment label before ordering.
How should I confirm this part fits?
Compare the listed part number, dimensions, specifications and fitment details with your existing component. Do not rely on appearance alone.




