If you need the sealing rings,please click the below link or picture.

Product introduction

Name:RISK Presta Vavle Extender
Brand:RISK
Material:Aluminum aly
Usage:Extension presta vave
Size 1:Integrated-45mm/80mm
Size 2:Removable-45mm/80mm
Weight1:Integrated-45mm 1 set 10.47g
Weight2:Integrated-80mm 1 set 16.15g
Weight3:Removable-45mm 1 set 7.2g
Weight4:Removable-80mm 1 set 10g
Weight5:Removable Presta Valve Sealing Ring 100PCS/Bag 2.54g
Package:Plastic Box

RISK RA108

Presta Valve Extender

How to distinguish the valve type?

Removable(Left picture)
Wrench position

Integrated（Right picture）
∪nit:mm

Note: The measurement has a small tolerance, for reference only.

Double sea l design, more reliable!

Removable structure
Original valve core
RISK Extender
Lock nut-Fixed extender,no shaking,more silent!
Buffer rubber ring-Protect rims
Wrench position
Silicone seal-Better air tightness.
Original valve
(Removable)

Integrated structure
Sealing ring
Anti-slip design .
Wrench position-Locking without air leakage
RISK Extender
Sealing ring-No air leakage under high pressure.
Original valve
(Integrated )

Careful and attentive! It is our consistent style!

Anti-slip design
By this way, it's not easy to loose the valve
when pumping under high pressure.

2 extenders can get a multifunctional wrench!
Hand-tightening nut is not strong enough, it's easy to vibrate loose during riding!

Buy 2 extenders can get a multi-function wrench for free! With the help of Installion wrench, you can avoid vibration loosening when long term riding !

Note: Installation in place, do not over tighten.

multifunctional wrench

Also for the removable
presta valve core.
Also for presta extender Installation.

Sometimes, slow tire leak, not a tire is damaged, but the sealis broken!
You can buy some spare.

Forge ahead, pioneering and innovative!

Regarding the length of the extender ( B ), Satisfy the formula A + B-C≥25mm.