Haven't ordered it yet , no bloody money after paying for a new swing arm but the old set up on the bike was a 15/47 and worked fine and the standard 15 front wears at a normal rate ( 14 wears faster)
OK i loose out on the road a little but its just a little easier on the clutch off road
Reason i'm going for a 525 chain kit is "its just beefier " i may not last any longer but logic says it will !!!! My DR650 runs a 525 and trust me that baby gets some hammer and the 525 last twice as long.
As for fixing broken chains on trails Phil get a chain spliter
EG......
http://www.ebay.co.uk/itm/Motorcycle...item1e82505e15
carry a short length of old or new chain and a fist full of split links
EG..............
http://www.ebay.co.uk/itm/MOTORCYCLE...item5d44fcae9e
Phil