08-10-2024, 06:23 AM | #17 | |
Join Date: Feb 2021
Location: Kansas City
Posts: 2,683
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Quote:
Real specs. You have just broken new ground!
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No matter where you go, there you are |
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08-10-2024, 08:56 AM | #18 |
Join Date: Mar 2024
Location: SC
Posts: 33
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Thanks Thumper! When I checked with Kouba Links, he of course never heard of a KPX 250, and did not appear eager to learn about them. It would be great if Lifan were to produce a link. Cheers!
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08-10-2024, 09:07 AM | #19 |
Join Date: Mar 2024
Location: SC
Posts: 33
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Photo of the link in place on the bike
The link in place...
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09-20-2024, 09:04 AM | #20 |
Join Date: Mar 2024
Location: SC
Posts: 33
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Does anyone out there have a Yamaha TTR 230 or Honda CRF 230? If so, would there be any chance that you could measure the lower link at the bottom end of the rear shock? So far I have not found any measurements online, and I would rather not purchase one just to measure it. Thanks to all involved in Chinariders.net! Lots of great info here.
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09-26-2024, 08:05 PM | #21 |
Join Date: Sep 2024
Location: Annapolis
Posts: 11
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I did. 32" seat height is possible with Stock wheels/tires if you drill another hole in the shock AND Add an inch to the bottom link. The bottom link on the KPX250 is mild steel.. so just cut it and weld in some new 1/4" steel. Welds like a dream with MIG. If a Really nice 34" height is acceptable with stock wheels/tires, leave the shock in the stock hole and just add the inch. That's where I ended up, ample travel.. turn in with street tires is AWESOME! Also you can lower the front 2 full inches if you get a handle bar set back kit and diddle the triple clamp. The USD forks have a full 2" of adjustment lower. I may see if I can nab another inch lower with internal mods.. That w/the real super moto 17" wheels should be ideal. Use the stock KPX hubs, but get 17" Hoops/rims ($275 Ebay) that take 8 gauge/4mm thick spokes and buy the spokes to lenghth ($100 2 wks ship). Pretty easy to respoke the stock hubs for 17" hoops. I'd like to compare mine to a KLX300 SM at over twice the price if anybody has one near annapolis MD?
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09-28-2024, 07:29 PM | #23 |
Join Date: Sep 2024
Location: Annapolis
Posts: 11
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Koubla and adjustable screw bearing end assemblies probably won't work right depending on how the bearings work when bolts torqued. The stock design is actually pretty sophisticated with sealed roller bearings at every joint.. IMO far easier to just weld in an extra inch between the two holes. Best to check the clearance through out whatever travel you end up with before you weld it up. The whole rear suspension assembly MIG welds beautifully.. it's cast Steel, not cast iron. Pics of mine coming..
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10-07-2024, 07:27 PM | #24 | |
Join Date: Mar 2024
Location: SC
Posts: 33
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Nice work!
Quote:
I am very glad to hear that you were successful in lowering the bike. My wife is getting comfortable riding on the road, though it does bring her some challenges. She is eager to do some off-road riding, but I would rather lower her bike first. Thank you for doing the work and posting it here! Maybe I will buy a new stock link and do the surgery on it. |
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10-07-2024, 07:31 PM | #25 | |
Join Date: Mar 2024
Location: SC
Posts: 33
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Looking forward to it
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Yesterday, 05:07 PM | #26 |
Join Date: Sep 2024
Location: Annapolis
Posts: 11
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Thanks for the thumbs up.. Got the 17" rims, spokes and tires for the super moto.. plus the spoke threading tool just in case. Decided I'd wait to respoke the wheels over the winter.. having way too much fun on tubed street stock size tires (90-21 front and 12-18 rear) and lowered. The best way I figured out was to extend the stock bottom link.. it has perfect ball bearings and spacers.. low friction and perfect alignment. If you go Koubla link style, the two links are totally seperate, some possibility of binding plus there is parallogram movement possible.
Two issues so far: 1. Ran Out of Gas with 3 bars left!! I guess I need the second two inch drop on the front by switching to 17" front from 21". 2. Front end brake dive.. Not really a problem.. just would rather a bit less. I actually like the non-adjustable front shock valving.. near perfect damping, just too much movement. Two possibilities: Cut the spring, and/Or increase the viscosity of the shock oil. I will need to dissassemble the shocks to see what's possible with spacers and spring winding and end configuration. Otherwise I may try taking out some of the stock shock oil and replacing with 20 weight shock oil. Love this bike.. street tires made ALL the difference! I'm actually a VG driver.. just didn't know it with the Dual nothing tires. Pushing 1200 miles! |
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Tags |
kpx 250, kpx250, lowering link |
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