Tube stem valve types for Vintage Motocycles

21 Jan

Written By Andy Dorr

Here is a list of the most common tube stem valve types for Vintage Motorcycles Tubes

TR-87/C

Center-mounted 90° metal stem. Designed for tight hubs, narrow clearances, and clean access.

TR-6

Metal valve stem with locking nuts. Center or side valve — check spec (CV / SV) before install. Lock nuts prevent stem creep under load.

TR-15

Rubber valve stem. No lock nuts. Tapered base for flexible fitment. Center or side valve — verify valve position.

TR-13

Center-mounted rubber valve stem. No lock nuts. Straight base. Traditional fitment for classic rims.

TR-4 (most common used on Vintage Motorcycles)

Metal valve stem with locking nuts. Center or side valve — confirm valve position before mounting.

Tube Fitment Notes

Valve position matters. Center vs side valve is dictated by rim drilling — don’t force it.

Metal stems = stability. Better resistance to movement under hard braking, acceleration, or low pressures.

Rubber stems = flexibility. Easier fitment, better for lighter street setups.

Lock nuts are not decorative. Set them correctly to prevent valve stem tear-out.

Tube size must match tire range. Oversized tubes crease. Undersized tubes stretch and fail.

Always inspect rim tape best t ofit a new one . Sharp spokes kill tubes faster than bad tires.

. Reduces friction, heat, and internal abrasion.

Inflate slowly. Seat the tube evenly before final pressure.

If you’re unsure, don’t guess — contact us and we’ll recommend the correct tube for your build, riding style, and wheel setup.

VINTAGE MOTORCYCLE TYRES Era-Based Tyres, Styles and sizes