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john24ssj |
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john24ssj Trackday Trickster
Joined: 08 Aug 2014 Karma :
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Posted: 16:29 - 24 Jun 2017 Post subject: 17T 520 sprocket upgrade for Yamaha XVS250 |
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Hi everyone,
I just got XVS250 with the stock 20/56 sprockets and a 428 chain and the gearing is way too low. 1st gear is pretty much useless, I mostly take off using 2nd. I found loads of info about XV250 mod which I though I was doing (did not realise XVS250 and XV250 were different) until I realised it does not work. The rear 42T sprocket fitted the wheel hub perfectly but of course I realised the chain being 428 would not fit the sprocket and the front one was not fitting either into the splines
So I got 1/3 of the mod which is the rear sprocket at 42T JTR857 but I can't find a 17T front sprocket what would fit the right z-14 splines
https://i.imgur.com/YqQvJoS.png
that XVS250 needs at 520 pitch.
Can anyone recommend a 17T 520 front sprocket that would fit the XVS250?
Thanks ____________________ Bikes: Honda CBR600Fi, Kawasaki ER5 |
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Matt B |
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Matt B World Chat Champion
Joined: 01 May 2012 Karma :
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bamt |
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bamt World Chat Champion
Joined: 15 Dec 2013 Karma :
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bamt |
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bamt World Chat Champion
Joined: 15 Dec 2013 Karma :
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john24ssj |
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john24ssj Trackday Trickster
Joined: 08 Aug 2014 Karma :
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The Shaggy D.A. |
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The Shaggy D.A. Super Spammer
Joined: 12 Sep 2008 Karma :
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Posted: 12:16 - 26 Jun 2017 Post subject: |
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Bamt, after you made the swap, what was the top end & mpg like? ____________________ Chances are quite high you are not in my Monkeysphere, and I don't care about you. Don't take it personally.
Currently : Royal Enfield 350 Meteor
Previously : CB100N > CB250RS > XJ900F > GT550 > GPZ750R/1000RX > AJS M16 > R100RT > Bullet 500 > CB500 > LS650P > Bullet Electra X & YBR125 > Bullet 350 "Superstar" & YBR125 Custom > Royal Enfield Classic 500 Despatch Limited Edition (28 of 200) & CB Two-Fifty Nighthawk > ER5 |
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bamt |
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bamt World Chat Champion
Joined: 15 Dec 2013 Karma :
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john24ssj |
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john24ssj Trackday Trickster
Joined: 08 Aug 2014 Karma :
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Posted: 08:34 - 28 Jun 2017 Post subject: |
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Found the solution!
Got in touch with jtsprockets directly and they showed me that there is a XVS125 conversion kit to 520 which also applied to the XVS250. The front would be 15T and rear 38T giving me the ratio of 2.53 which is close enough to what I initially wanted.
I bought the parts and hopefully all goes well. I will report back with my findings later ____________________ Bikes: Honda CBR600Fi, Kawasaki ER5 |
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Old Thread Alert!
The last post was made 6 years, 275 days ago. Instead of replying here, would creating a new thread be more useful? |
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