rrefugee Posted May 16, 2021 Report Share Posted May 16, 2021 Dont laugh, I feel pretty stupid asking this. It's a newbie thing. I'm going to replace both sprockets and the chain on my 4t. Is there something special about a 4t chain? Looking on Ebay there are tons of Beta specific chains listed but they all say "not for use on 4t". Trials Superstore and The Trials Shop have chains, all are listed as 520 chains, but all have different numbers of links. What chain do I need? I'm using 10/42 sprockets. Quote Link to comment Share on other sites More sharing options...
kurtas Posted May 16, 2021 Report Share Posted May 16, 2021 Don't know but my guess is the length between the Counter shaft sprocket and the rear wheel sprocket is different between 2T and 4T. Quote Link to comment Share on other sites More sharing options...
lineaway Posted May 17, 2021 Report Share Posted May 17, 2021 3 hours ago, rrefugee said: Dont laugh, I feel pretty stupid asking this. It's a newbie thing. I'm going to replace both sprockets and the chain on my 4t. Is there something special about a 4t chain? Looking on Ebay there are tons of Beta specific chains listed but they all say "not for use on 4t". Trials Superstore and The Trials Shop have chains, all are listed as 520 chains, but all have different numbers of links. What chain do I need? I'm using 10/42 sprockets. Well if you are ordering the same sprockets then count the number of links on your existing chain. It`s much easier to own a chain breaker, then you can cut a chain to fit. Just order a chain at the best deal, longer than your original. Quote Link to comment Share on other sites More sharing options...
MIckyT Posted May 17, 2021 Report Share Posted May 17, 2021 (edited) yes its not a special chain but is a special length you need a half link fitting to get the correct length Your Beta importer should have this chain ready to go on the shelf OEM regina very good quality last ages Edited May 17, 2021 by MIckyT Quote Link to comment Share on other sites More sharing options...
rrefugee Posted May 17, 2021 Author Report Share Posted May 17, 2021 I counted the links, there are only 50. So will any 50 link 520 chain work? Quote Link to comment Share on other sites More sharing options...
lineaway Posted May 17, 2021 Report Share Posted May 17, 2021 That would be 100 link chain. You werw counting 2 pin plates. Quote Link to comment Share on other sites More sharing options...
lineaway Posted May 17, 2021 Report Share Posted May 17, 2021 So know you wonder with the above comment if it was 101 with the half link stock. So you buy a chain breaker and a 102 or longer chain. Quote Link to comment Share on other sites More sharing options...
MIckyT Posted May 17, 2021 Report Share Posted May 17, 2021 probably 101 links to start when new your chain could have been shortened after it stretched Quote Link to comment Share on other sites More sharing options...
reggie Posted May 17, 2021 Report Share Posted May 17, 2021 IRIS 520 RXL chain, 1/2 links and master links readily available in the USA I would purchase 1 x chain 106 link 1 x 1 and 1/2 link and 3 extra master links Quote Link to comment Share on other sites More sharing options...
b40rt Posted May 17, 2021 Report Share Posted May 17, 2021 The only chain I have ever seen break is iris. Your choice. Quote Link to comment Share on other sites More sharing options...
rrefugee Posted May 18, 2021 Author Report Share Posted May 18, 2021 Thank you all for helping me out. I have a chain ordered, a 1/2 link is another story. They sell for 7-9 dollars but they want 25-32 dollars to ship. I need to find one with a more reasonable shipping cost. The chain on the bike dosen't have a 1/2 link so maybe I can go without one. Quote Link to comment Share on other sites More sharing options...
MIckyT Posted May 18, 2021 Report Share Posted May 18, 2021 if a previous owner has altered gearing by + or -1 tooth it might not need half link Quote Link to comment Share on other sites More sharing options...
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