Phil,
Just purchased a new chain and sprockets after me last chain jumped off.
Got the sprockets from here:
Rear sprocket:
http://www.brakes4u.co.uk/itemdetail.asp?catid=21199
Front Sprocket:
http://www.brakes4u.co.uk/itemdetail.asp?catid=21835
Used the code: tradeclub2605 to get 10% off.
Have used them before and they are quick to deliver. Ordered monday, delivered tuesday. You can search and get different size sprockets.
I also ordered an EK Quadra X-ring chain (on minkeyheads recommendation
). I found this place that I've used before for bits.
http://www.bikebitsni.com/index.php?...productId=1066
Al