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#1 |
Join Date: Apr 2016
Location: North Utah
Posts: 37
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Hawk chain
I was not given a owners manual, also I can not find it on the Internet. Im replacing my chain and sprockets I went from factory 15-50 to 17-45, but my chain seems loose. Does anyone know the factory measurement and from where to take the measurement?
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#2 |
Join Date: May 2016
Posts: 583
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MotoCheez used this on his Hawk: http://www.amazon.com/dp/B004ZG7X14
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#3 | |
Join Date: Feb 2016
Posts: 98
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#4 |
Join Date: Dec 2014
Location: Deerfield Beach FL
Posts: 1,410
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That 125cc rating has to be some sort of typo/error.
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#5 |
Join Date: Apr 2009
Posts: 770
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not really, the 428 is not a very big chain. get a quality one. *most hi pro 250's use the larger 520.
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#6 | |
Join Date: Jun 2010
Posts: 380
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Quote:
http://www.cycleworld.com/2015/08/28...torcycle-chain You want the chain reasonably snug but not too tight, a couple inches, say 1.5 - 2" freeplay up and down is what I would do... Curious, why are you replacing the chain? Removing a link is not that difficult is your stock chain is too long with the new sprockets. http://tkmotorcyclediaries.blogspot....ster-link.html |
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#7 | |
Join Date: Apr 2016
Location: North Utah
Posts: 37
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#8 |
Join Date: Oct 2015
Location: Texas
Posts: 93
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For what it's worth, from the RPS Owner's Manual, page 42:
4. Turn both adjusting nuts the same amount of turns until you have reached the correct slack. To tighten the chain, turn the adjusting nuts clockwise. To loosen the chain (provide slack) turn the adjusting nuts counter-clockwise. Adjust the slack in between the drive sprocket and the rear wheel sprocket. Move the bike forward, stop and park it on the side stand. Recheck the slack, it should allow vertical movement by hand: 9/16 inch (15-30mm) From my own experience, I now believe this. I didn't think this was correct from my ancient dirt bike experience and everything else I read. However, it also demonstrated to give the owner's manual the benefit of the doubt over the internet. When I did my first adjustment - I set a little extra slack, 1-2" because that just seemed more logical. I quickly found out that wasn't a good choice. Chain jumped, cracked my front sprocket cover (17t front, so no space), and carved up the rear axle area a bit. Luckily it didn't break, and it's been holding up good enough after getting readjusted to spec. I do think you'll want to err on the side of tightness if you stay with the stock chain. They have a couple of pages dedicated to maintaining the chain in the owner's manual. Here's a link if you didn't get a paper one included: http://therps.net/User%20Manual/Hawk...s%20Manual.pdf |
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#9 | |
Join Date: Apr 2016
Location: North Utah
Posts: 37
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![]() Quote:
Also I was already going to change the chain. Once I got the bike I could tell the chain was cheap. Which is expected. There is going to be cheap factory parts for any new bike under 3 grand |
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#10 |
Join Date: Sep 2014
Posts: 1,908
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There are 125cc motorcycles that produce over 40 horsepower. A good quality chain like the 428 size RK or DID will handle the Hawk's massive horsepower, no problem.
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#11 |
Join Date: Apr 2016
Location: North Utah
Posts: 37
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Yeah I planned on roughly 2inches, just wish I could track down the OM thanks guys!
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#12 |
Join Date: May 2016
Location: Kansas
Posts: 31
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Are there any cheaper but still good chain options that you have used?
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#13 |
Join Date: Apr 2016
Location: North Utah
Posts: 37
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I've always used D.I.D chains. Just the standard goes for about 40bucks. Never had any problems. For the hawk I used a 428 130 D.I.D standard I put 30 miles on since seems to be working great. I'll update after a 100+ Miles.
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#14 |
Join Date: Dec 2015
Location: CO
Posts: 1,525
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I have been using UniBear for several years now, and I just ordered one for the Mrs. Bashan WILL200 a week or so back, was only $17 or so with 'prime shipping' for a 136 link 428 X-Ring chain from UniBear/Amazon
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#15 | |
Join Date: May 2016
Posts: 583
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Tags |
chain, hawk, hawk 250 |
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