04-09-2007, 08:22 AM | #16 |
Join Date: Feb 2007
Location: W. Massachusetts USA
Posts: 25
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I concur 100% with red! By setting sag you are only eating into your total travel which as he says is 2 3/4". He was able to get more travel from the r1 shock because it is longer and raises the back of the bike to mechanically let the linkage travel farther..thus more rear wheel travel By modifying the linkage he has increased the scissor travel which transalates into rear wheel travel without raising the rear of the bike. A direct shock to swingarm mount, (no links) would be another alternate for more travel as dicussed.
I'm picking up an r1 shock today. My upper shock mount is already a 10 mm bolt and I'll only have to "washer" weld the lower linkage bolt hole to accomodate the 12mm bolt. It will raise the rear of the bike though. I'm going to stop with the mod there as my son mostly rides on the street and the front end geometry is quite a bit slack stock. We raised the fork tubes to make it steer quicker stock. A little sag in the rear should work well with the stock or higher fork height. If dirt riding a lot...Go for Red's full mod!!, though there might be shocks available with a lighter spring rate. (R6, CBR600?) Evaluate any mod very well at a reasonable pace before even thinking about pushing the envelope!! |
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04-09-2007, 11:00 AM | #17 |
Join Date: Jan 2007
Location: Northern Vermont, USA
Posts: 1,271
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4xFlyer,
The R1 shock will slightly raise the rear ride height and result in a little less then 5 inches of travel before the scissor is fully extended. You will have to compress it slightly to get it in there if you don't raise up the top mount like I did, but it will work just fine. The real problem with the rear of these bikes is the linkage. It is just a messed up design. With the stocker shock it is way too stiff, and with a softer shock with more travel, the linkage binds open and you still don't have a good setup. The R1 shock was much better, but the full benefit of the softer setup with decent travel is only attainable with a modified linkage, or by moving the shock on top of the swingarm and eliminating the stock scissor all together. The worst trouble with mounting it on top of the swingarm is you'll need a completely new top mount fabbed onto the top chassis tubes under the seat, and the shock will be unprotected from debris flying off the back wheel unless you make up a new inner fender. You would also have to eliminate the stock airbox, and run a pod type filter with this setup.
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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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04-09-2007, 11:35 AM | #18 |
Join Date: Oct 2006
Location: British Columbia, Canada
Posts: 223
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Thanx Red,
A co-worker of mine also owns a welding shop and helped with my wakeboard pylon for my boat. I'm sure he could fab it up with your instructions and diagram from the other post without too much trouble. |
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04-09-2007, 11:57 AM | #19 | |
Join Date: Oct 2006
Location: Central Ohio
Posts: 289
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Quote:
Proper balance is achieved by changing spring rates in both front and rear suspension for your weight... then if you had adjustable shocks you would use the compression and rebound (and possibly revalve to change oil flow) to fine tune for the conditions. Travel alone is not the key -- it's the setup... and sag is one part of that setup.
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'20 RPS Magician 250 '06 Hensim (Tierra) DB150-2 '06 X-Treme 70cc pitbike '02 Kawasaki KX125 |
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04-09-2007, 12:25 PM | #20 |
Join Date: Jan 2007
Location: Northern Vermont, USA
Posts: 1,271
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Well, actually travel IS the point to this thread. With the stock linkage, you have less then 3 inches of usable travel. That's gonna suck no matter what adjustments you try to make. Believe me, I tried!!!
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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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04-09-2007, 12:57 PM | #21 |
Join Date: Oct 2006
Location: British Columbia, Canada
Posts: 223
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Red,
As per your other post I'd have to have the OEM parts cut and fabed up to match the diagram. I guess just flipping the linkage(scissor) front to back wouldn't work because of the change in angles. |
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04-09-2007, 01:54 PM | #22 | |
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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04-09-2007, 03:04 PM | #23 |
Join Date: Mar 2007
Posts: 732
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What about using a linkage off an MX bike? Just wondering if it could work for you guys.
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04-09-2007, 03:23 PM | #24 | |
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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