Just thought I would post a reply back...

I eventually went for a pair of DT Swiss Ex5.1 Laced up to my exsistng hope 36h bulbs front and back (both fully overhauled with new bearings) with Black DT competition spokes and I must say they are a much livelier wheel set than the previous mavic 321's and feel just as solid and stable in all conditions. Just a couple of things I have found with these rims conti tyres are hardwork gettign on and off even kevlar beads, and the rims are drilled for presta valves only. Both are no real big issue and with regard to the valves I dont know why I stuck and insited on shreader for so long prestas seem to be a much better.

NOOOOOOOOOOOOOOOOo TOOOOOOOOOOOOOOO PRESTA's

HORRIBLE HORRIBLE things,  the little end snaps off really easy and the valve core itself faily easily to ie where it attached to the tube,  I don't get 2 weeks outta a Presta these days,  made too damn cheap.

Get the drill out!!

I drilled my 5.1's so that I could use schraeder's.

Then converted to tubeless and now have to use presta's

i drilled my 5.1s too so i could use schraeder

then converted to stans tubeless and i can still use schraeders

I bought my rims and had them built up at my  local independant bike shop

Albany Cycles

Tel. 024 76 673353

When you call ask to speak to Simon (the owner), hes a top bloke who does a top job and gives excellent customer service.