Monday 5 November 2012

Tubeless valves & outer shifter cable collected

At long last, the tubeless valves arrived at MK Cycles today. Front and rear valves are completely identical, except the rear valve has an additional adapter to match the offset section of the rear rim. Despite the almost microscopic proportions of this simple plastic spacer, the rear valve is a whopping 50% more expensive than the front.

The rear valve is the one on the right, complete with its adapter, which sits on the outside surface of the rim. There's an O-ring seal under the knurled locking ring, but not under the adapter.

Here's the rear valve in situ, perched on its adapter, overhanging the drive side of the rim.
WH-7850-SL-F valve unit, front:
 - 6.8g
 - £3.99

WH-7850-SL-R valve unit, rear:
 - 6.9g
 - £5.99

While I was at the shop collecting the valves, I also picked up a length of outer sheath for the shifter cable, plus the necessary ferrules for the outer and a cap for the inner, which altogether set me back £1.50.

I'm now looking forward to finding out how lacking my humble collection of bicycle tools is over the next few days!

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