02-01-2007, 12:17 AM | #1 |
Join Date: Feb 2007
Posts: 43
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Lifan LF200 chain and sprocket info?!
Hi people, I just got a Lifan LF200 bike and the top speed is not where I want it. Im thinking of doing a sprocket changeover to get more speed, but Im not sure if the chain is 428 or 520. Also does anyone have any recommendations as to what sprockets I should use to get a higher top end...
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02-01-2007, 02:38 AM | #2 |
there are a lot of posts about sprockits. 17 front and 45 rear works well for us. it lets go about 68 mph and still has alot of power.
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02-01-2007, 09:13 AM | #3 |
Join Date: May 2006
Location: Yuma, Arizona
Posts: 9,056
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You have the 428 chain, but you can switch to a 520 with a little bit of modification to the front sprocket case, from what I understand. The GY-5 LIfan model has a stock 46 t rear and 17 t front sprocket which is good for around 70+ mph according to the owners of those bikes. If you have a GY-2 model, not sure what the stock set-up is. The other brands, that are manufactured by Lifan, but that have their own names have various combos, the most popular seems to be a 56 t rear/14 t front.
If you were hoping to get more than 70 mph as your question is a little vague (you don't mention what speed you are currently getting) you won't see it out of the GY enduros. 70-75 (mph) is about the tops.
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02-01-2007, 11:03 AM | #4 |
In know this is a dopey newbie question, but when you mention a 520 vs a 428 chain, does this reference the tensile strength or the size, or both, and is there an easy way to ID one's chain?
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02-01-2007, 11:27 AM | #5 |
Join Date: May 2006
Location: Yuma, Arizona
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The main difference in chains is the size (width), the 428 being smaller (narrower) than the 520. Not sure if tensile strength is different, but fairly certain its not. Someone had posted the differences in width size a few months ago, so if you research the threads, you might be able to find the sizes, or if someone knows them off-hand, your knowledge is needed right about now...
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02-01-2007, 11:32 AM | #6 |
Join Date: May 2006
Location: Yuma, Arizona
Posts: 9,056
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Part of the question can be answered above in the "Sticky:chains 101"
And here is a post to describe the differences: http://chinariders.net/modules.php?n...ghlight=chains
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02-01-2007, 11:42 AM | #7 | |
Join Date: May 2006
Location: Yuma, Arizona
Posts: 9,056
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Quote:
"The pitch is the distance between the center of the rivets of the chain. It is .5" for 428 chain and .625" for 520 chain." -- Fashby
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"They say that life's a carousel, spinning fast you got to ride it well..." TGB Delivery Scooter 150 TMEC 200 Enduro--carcass is sadly rotting in the backyard |
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02-01-2007, 11:52 AM | #8 |
So a sprocket change is also necessary when upgrading to a heavier chain.
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2009 XR650L Big Red Pig Tusk bar risers 2007 X-Moto(Jetmoto) GY250 --mods--- 15/40 sprockets UNI Pod Filter 2007 Shineray TMS 200XYi--Betsy Betsy Mods:______________________ Acerbis DHH headlight FMF Powercore pipe Uni Pod Filter |
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02-01-2007, 12:22 PM | #9 | |
Join Date: Jan 2007
Location: Northern Vermont, USA
Posts: 1,271
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Quote:
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First Chinabike: 2006 Roketa RSX200E Current Chinabikes: 2023 Titan DLX & 2022 Lifan KP Mini w/ 210cc BRT kit, 22 RWHP! |
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02-01-2007, 12:42 PM | #10 |
Join Date: May 2006
Location: Yuma, Arizona
Posts: 9,056
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red2003 gives a good opinion as far as compromising. A conversion to a 520 chain would give you a theoretical stronger chain, and open up the sprocket choices a bit, but you would need to do some work to get it to fit at the front.
On the "sticky: chains 101" member Fatboy250 said that he ordered a 428H 126 chain that had the correct number of links to fit his 46 t sprocket, and the "h" stood for heavy duty.
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"They say that life's a carousel, spinning fast you got to ride it well..." TGB Delivery Scooter 150 TMEC 200 Enduro--carcass is sadly rotting in the backyard |
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02-01-2007, 01:09 PM | #11 | |
Join Date: Jan 2007
Location: Northern Vermont, USA
Posts: 1,271
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Quote:
__________________
First Chinabike: 2006 Roketa RSX200E Current Chinabikes: 2023 Titan DLX & 2022 Lifan KP Mini w/ 210cc BRT kit, 22 RWHP! |
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02-01-2007, 01:43 PM | #12 |
Join Date: May 2006
Location: Yuma, Arizona
Posts: 9,056
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Thanks for clearing that up. :oops: On one of the threads I had linked to above (from a few months ago), one of the members was recommending going to the 520 chain, and after reading Fatboy250's response a couple of weeks ago re: his aftermarket 428 heavy duty chain, I thought that when I am on the road again, I would go with this same 428 chain. You seconded it for me today and the weight issue is one I hadn't even considered. Thanks!!
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"They say that life's a carousel, spinning fast you got to ride it well..." TGB Delivery Scooter 150 TMEC 200 Enduro--carcass is sadly rotting in the backyard |
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02-01-2007, 01:53 PM | #13 | |
Join Date: Jan 2007
Location: Northern Vermont, USA
Posts: 1,271
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Quote:
__________________
First Chinabike: 2006 Roketa RSX200E Current Chinabikes: 2023 Titan DLX & 2022 Lifan KP Mini w/ 210cc BRT kit, 22 RWHP! |
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02-01-2007, 06:20 PM | #14 |
Awesome guys thanks. We ought to move this information to the chains 101 area as I don't believe that the sizing nomenclature is discussed. I had read through it and not found the answers I was seeking. The pitch and width info is great. BTW I will be sticking with the 428 as well.
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2009 XR650L Big Red Pig Tusk bar risers 2007 X-Moto(Jetmoto) GY250 --mods--- 15/40 sprockets UNI Pod Filter 2007 Shineray TMS 200XYi--Betsy Betsy Mods:______________________ Acerbis DHH headlight FMF Powercore pipe Uni Pod Filter |
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06-09-2007, 02:03 PM | #15 |
Join Date: Jun 2007
Posts: 12
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CHAIN
RED 2003 IS CORRECT! More rotating mass will rob power, but yes! I snapped my chain as soon as i installed my racing engine! So i had to buy the HD D.I.D. chain for my bike and NEVER had problems ever again! It also boasts low stretch so that you dont have to adjust it every week! I adjust mine only every 2 weeks now.
I sell this chain in my website, will fit most chinese bikes and its a tru-roller design for less friction than stock...as a matter of fact after i installed the chain i noticed a significant increase in low end power bc of less stretch. |
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