Motorcycle Fork Top Cap Air Valves / Ports

Teknik Fork Air Valve / Screw

Fork Air Valve / Screw

If your motorbike has modern "Separate Function Forks", you probably have a comp adjustment clicker on one top cap & reb on the other, but for many adjustable designs both caps have compression damping adjusters - learn more about open or closed chamber front forks. If you've never adjusted your dampers, read our clickers article - they're like opening or closing a tap for more or less suspension oil to flow.

Air ports, bleed screws and valve cores for fork service and tuning

  • Set and top-up pressure on air forks using Schrader (tyre) valves
  • Drain frothy emulsion or check oil via emulsion bleed bolts
  • Replace sealing o-rings, valve cores and caps to prevent leaks and contamination
  • Maintain compact adjuster assemblies, clickers and piston hardware for precise damping control

Adjuster assemblies include a sealed top cap with o-ring, a threaded hollow centre shaft, free piston, inner chamber spring and machined damping pistons. For pumps and inflators see our hand pump them to the right pressure. If you need small parts we stock Fork Adjuster Parts, plus upgrade items like clicker knobs and billet free pistons.

Recommended Pairings

Consider matching these valves and screws with Suspension Tools for proper setup and maintenance.

Shop Fork Air Valve / Screw

Browse Schrader valves, emulsion bleed bolts, valve caps and seals for all fork types and service needs.

24 Products Found
Showa Genuine Parts

Showa Genuine Parts Plug bolt (gold)

Showa Genuine Motorcycle Suspension Parts
(SKU: F45300004)
$9.60
Special Order
Order placed with Showa GPE every 2nd week. 2-3 week delivery if in stock at Showa GPE

Showa Genuine Parts

Showa Genuine Parts Plug bolt

Showa Genuine Motorcycle Suspension Parts
(SKU: F45300005)
$12.00
Special Order
Order placed with Showa GPE every 2nd week. 2-3 week delivery if in stock at Showa GPE

Showa Genuine Parts

Showa Genuine Parts Cap air valve

Showa Genuine Motorcycle Suspension Parts
(SKU: F45600002)
$7.21
Special Order
Order placed with Showa GPE every 2nd week. 2-3 week delivery if in stock at Showa GPE

Showa Genuine Parts

Showa Fork Top Cap Air Valve Stem - NLA

Showa Genuine Motorcycle Suspension Parts
(SKU: F46700002)
$10.46
Special Order
Order placed with Showa GPE every 2nd week. 2-3 week delivery if in stock at Showa GPE