Facebook Twitter LinkedIn Pinterest Bluesky Threads At a total loss here – bike is S valve, but the S on the pump doesn’t fit, however, I can’t get any of the grey pieces to sit correctly either by InsuranceSuch3132 Bicycling Bike Bike Repair Biking Cycling Repair
_Danquo_ on December 28, 2025 8:59 pm That’s not a shrader valve (S), it’s a dunlop valve, that’s why it doesn’t fit.
Caribou-nordique-710 on December 28, 2025 9:01 pm The valve is a Dunlop style, try using the presta (smallest/lower) hole on your pump valve adapter. [https://www.youtube.com/watch?v=22ELnwzHFm0](https://www.youtube.com/watch?v=22ELnwzHFm0)
Lopsided_Produce_425 on December 28, 2025 9:31 pm That’s a Woods valve, some call it a Dunlop Valve. You need to use a connector thats labelled as fitting a Presta valve ( totally different but the same size of fitting).
4 Comments
That’s not a shrader valve (S), it’s a dunlop valve, that’s why it doesn’t fit.
Dunlop valve
The valve is a Dunlop style, try using the presta (smallest/lower) hole on your pump valve adapter.
[https://www.youtube.com/watch?v=22ELnwzHFm0](https://www.youtube.com/watch?v=22ELnwzHFm0)
That’s a Woods valve, some call it a Dunlop Valve.
You need to use a connector thats labelled as fitting a Presta valve ( totally different but the same size of fitting).