34
35
To Install an Inline Extender
+
Requires Bontrager Valve Key
1. Place Bontrager Valve Key over presta valve core lining up the flats in the key with the flats
on the valve core (Figure 39).
2. Turn key counter-clockwise to remove valve core.
3. Screw inline valve extender into valve stem clockwise (Figure 40).
4. Place tool over extender.
5. Tighten by turning clockwise.
6. Screw valve core into extender clockwise.
7. Place key over valve core, lining up flats, and turn clockwise. Note: should be snug. Do not
over tighten as it may damage the extender (Figure 41).
Figure 39. Turn key counter-
clockwise to
remove core.
Figure 40. Screw inline valve
extender into
stem.
Figure 41. Tighten valve core
with key turning
clockwise.
To Install an External Extender
1. Turn valve counter clockwise. Give it a firm twist to lock in fullly open position which prevents
it from vibrating closed while riding (Figure 36).
2. Wrap four thin layers of Teflon plumber’s tape around the end of the valve covering both the
narrow threads and a small portion of the wider body. Warning: Do not cover the air opening
at the end of the valve (Figure 37).
3. Screw external extender onto valve by turning clock-wise firmly with fingers. Warning: Do
not over tighten as this may damage the extender (Figure 38).
Figure 36. Turn valve counter
clockwise.
Figure 37. Wrap four layers
of plumbers tape
around.
Figure 38. Screw extender
clockwise onto
valve.
Summary of Contents for WHEEL
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