Ryan STM inner tubes

[mikeh]

Hi

 

The inner tubes we are running on our Ryan STM have valves which only just reach to flush with the hub housing. This makes pumping the tyres and checking the pressures a nightmare. What inner tubes are people running? Can one use long valve stems? Any advice much appreciated. Thanks

[ozryan]

Hi Mike,

 

I assume you are still using the old 3 inch tyres. These are extremely difficult to source these days.

There are a couple of options here.

Firstly, you can use an extension when you need to check or inflate the tyres, installing and removing the extension each time. This is a little bit cumbersome, but avoids having the extension potentially snag or foul on something.

Alternatively, a more permanent solution is to convert to 8.00 x 4 Cub tyres. This entails fabricating adaptor plates to fit the hub (lots of filing for a patient person), but enables you to fit tyres and tubes that are readily available from Desser.

As you can see in the attached photo, we are fitting the Grove brake units, which offer better reliability as well as fitting neatly inside the wheel pant.

Hope this is of some help.

 

Guy