grindrod Posted May 18, 2008 Report Share Posted May 18, 2008 Hi gang, I have a 2006 Rev3 200cc and have just replaced the sprockets and chain, the front sprocket is 11t and the rear 53, I was given a 100 link chain. It all fitted OK with the chain tension just slightly on the tight side with the wheel fully forward (the gap between guide and swingarm was 2.3cm instead of 2cm as given in the manual). Problem was as soon as I rode it at the Trials Training Day on Saturday the back wheel clogged, fortunately I had taken the old chain that I quickly fitted during the lunch break, the old chain is 101 links (100 links plus a half link) and with it fitted the rear wheel is almost at the other end of it's adjustment, good gap between tyre and S/A and no clogging!!! Anyone else had this problem? I am not a fan of half links but I am guessing that actually the old chain may have started life as a 102 link but when it stretched the previous owner found there was no more adjustment and shortened the chain to 100 links and then added a half link. Trials Training day (Glos & Cotswold) was great by the way! Quote Link to comment Share on other sites More sharing options...
kinell Posted May 18, 2008 Report Share Posted May 18, 2008 Hi gang, I have a 2006 Rev3 200cc and have just replaced the sprockets and chain, the front sprocket is 11t and the rear 53, I was given a 100 link chain. 53 rear sprocket? I'm sure it should be 42 (or is it 44?) Quote Link to comment Share on other sites More sharing options...
grindrod Posted May 19, 2008 Author Report Share Posted May 19, 2008 53 rear sprocket? I'm sure it should be 42 (or is it 44?) Blame a loss of marbles having reached the O50 group!!! I will check tonight, is there a height difference between different makes of tubeless rear tyres because there is very little clearance between the tyre and S/A. Quote Link to comment Share on other sites More sharing options...
kinell Posted May 19, 2008 Report Share Posted May 19, 2008 I've just noticed that your bike is 200cc so it might have a different sized rear sprocket? I don't think there would be a noticeable difference between tyres, if you are using a standard length chain on a big sprocket then your wheel would be much further forwards than normal... Quote Link to comment Share on other sites More sharing options...
grindrod Posted May 19, 2008 Author Report Share Posted May 19, 2008 Hi, it has 42t on the rear which I understand is standard. I will check the chain lengths side by side to see just what the difference is, but certainly having the wheel fully forward is no good!! Quote Link to comment Share on other sites More sharing options...
kinell Posted May 19, 2008 Report Share Posted May 19, 2008 Hi, it has 42t on the rear which I understand is standard. I will check the chain lengths side by side to see just what the difference is, but certainly having the wheel fully forward is no good!! Is it actually touching the swingarm or just rubbing on the rubber cover for the rear shock? Quote Link to comment Share on other sites More sharing options...
grindrod Posted May 20, 2008 Author Report Share Posted May 20, 2008 Is it actually touching the swingarm or just rubbing on the rubber cover for the rear shock? Hi, the tyre is clearing the rubber cover but there is only about 0.25" gap between tyre and S/A with the wheel fully forward which meant it clogged (sticky mud and dead leaves!), with the longer chain fitted and the wheel almost at the other end of its adjustment the gap is a good inch and no clogging problems, I called into BVM and spoke to Steve Saunders about it and have now got an extra link to fit to the new chain. It seems 101 links is the preferred length on the 200 with the standard 11:42 sprocket set. I would be interested to know what Beta supply them with brand new. Cheers, Martin Quote Link to comment Share on other sites More sharing options...
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