Thinking of selling this - it was fitted approx 2009, the bikes done 2500 miles. I bought the bike with it on and I've covered 1000 miles and tbh I've not used the QS, I've had no need to, it's a second bike so it's had little use but works perfectly, still fitted. If you're seriously interested please PM me. If it's worth a reasonable amount I'll sell it and the money will go towards the service, I'll leave it on if only worth peanuts. Happy for anyone to post what they think it's worth. No 'packet of Chewits and a Texan bar' offer please.