I've got some information on tubeless valve stems for the cast XS650 wheels. This is a cut & paste off the ST Owners website (for Honda ST1100 and ST1300 sport touring bikes - all of which run tubeless tires). The thing with these bikes is that the brake rotors are so large that it is quite difficult to get an air chuck on a conventional straight valve stem. Soooo..., many ST Owners use 90-degree angled stems and they are MUCH more convenient to use.
Here is the post ( I think the vendor is
www.slowboyracing.com )
_________________________________________________________________________
From your favorite local vendor; 90 Degree Drop Forged Aluminum Angled Tire Valve Stems in various colors...
Available in: Black, Red, Silver, Gold, Blue
Available in both 11.3mm and 8.3mm
For our bikes <i.e. Honda ST1100 and ST1300> and most Japanese bikes you will need the 11.3mm but if you have Carrozzeria, Galespeed, OZ, Marchesini, Marvic and BST wheels you will need the 8.3mm ones. These are the same valve stems which come from the factory on the fancy italian bikes (Ducati, Aprillia, etc) and many MotoGP, WSBK, Moto2 teams use these valve stems.
Generally race teams like to run a different color valve stem than the wheel so that they can easily spot the valve stem. They are made in Italy and are
the same valves which are sold under the Ariete brand for much more. What they do?
- Easier to check pressure and fill tires (specially on the front)
- Lighter than rubber stems - they weigh in at 11 grams each
- They are reusable, no need to replace them like rubber valves with each tire change
- Fixed to the wheel with a locking nut, can't bend, or be expelled from the wheel
- The angled quill reduces the effect of centrifugal force, which tends to fling the valve core outwards in a conventional valve, leading to loss of pressure in tires.
Installation
Torque the locking nut to 7-10 Nm
How long before I receive my reservoir socks once I place an order?
- USA shipping times are 1-3 business days (Ships from NY)
- Canadian shipping times are 4-5 business days (Ships from Canada)
- Other International locations 6-8 business days (Ships from NY)
How much?
- $26.95 Shipped for the set to USA & Canada (MSRP is $29.95)
- International orders will receive a PayPal request of $3 USD for extra shipping charges once they have placed orders.
How do I place an order?
- Simply use the BUY NOW buttons below to place your orders. If you are using a mobile device and getting an error from PayPal when you click the BUY NOW buttons, simply send me a PM and I'll send you the PayPal email address to directly send the payment. Some mobile devices are not compatible.
11.3mm Black - Pair
---------------------------------------------------
11.3mm Silver - Pair