Anders Kolpen Posted September 23 Report Share Posted September 23 (edited) Custom chain tensioner for the Jitsie Varial Race 26" I made this tensioner to avoid chain slap as the chain would either be too tight or too loose with the snail cams. Also I can push the rear wheel forward to give me super short chain stays at consistent 374mm (stock is 380mm advertised - that grows with chain wear) I mounted the Clean forks with an adapter to go from 1 1/4 to 1.5 headset. The change would change the wheelbase to a longer bike, but measured wheelbase with this new tensioner is just 1081mm (stock is 1085 advertised). The tensioner mounts to the frame and stays in position even when the wheel is off. Tension is easily taken care of without the chain mounted and then the chain is wrapped on to the jockey wheel afterwards. Edited September 23 by Anders Kolpen 5 Quote Link to comment Share on other sites More sharing options...
La Bourde Posted September 23 Report Share Posted September 23 Really nice 😯👍👍👍 Did you make your own headset lower cup or are there some 1" 1/4 to 1" 1/2 adapter on the market? To me, all trials bikes need a tensioner, else the tension will vary too much after some riding. 2 1 Quote Link to comment Share on other sites More sharing options...
Ross McArthur Posted September 24 Report Share Posted September 24 Nice work. Would be even neater with a link or two out the chain if at all possible. A smaller jockey wheel might help achieve that? 1 Quote Link to comment Share on other sites More sharing options...
Anders Kolpen Posted September 24 Author Report Share Posted September 24 On 9/23/2024 at 6:28 PM, La Bourde said: Really nice 😯👍👍👍 Did you make your own headset lower cup or are there some 1" 1/4 to 1" 1/2 adapter on the market? To me, all trials bikes need a tensioner, else the tension will vary too much after some riding. This is an Acros headset (only bottom). There are quite a few out there. The standard is called EC49 👍 8 hours ago, Ross McArthur said: Nice work. Would be even neater with a link or two out the chain if at all possible. A smaller jockey wheel might help achieve that? Thank you very much. Actually the chain is as short as possible. The 'slack' is just from pushing the wheel forward from the snail cams' position 🤯 😁 Quote Link to comment Share on other sites More sharing options...
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