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Picked up some Showa Twin Chamber forks from a 2008 CRF450 to put on my 1996 CR250, and I believe the offset of the axle on the new forks is -2mm compared to the KYBs that came on the 96. I assume this would make a difference in handling. To correct the issue, would I just need to slide the forks a little further down the clamps? Ideally I'm trying to get it back to the stock wheelbase spec - correct? Thanks in advance!
But, ive done what you are thinking of doing, and it handled great. I used the stock 24mm offset triple clamps as well.
I remember measuring all that stuff and never found a difference. But if you are 2mm off, you can change triple clamp offset to compensate.
But yea, in 2005, Honda moved the axle back -2mm in the forks. So something tells me the forks you used were pre-05, correct?
Maybe you should use some pre 05 lugs ? So if you use the 05 up, and its 2mm farther back, itd be like having a 22mm offset clamp. Ive done that on cr250s. To twitchy for me.
The Shop
One of the best things from my putting WP CCs on my CR500 was the reduction of triple clamp offset from 24mm to 20mm ( with the further option of going to 18mm, which I'm yet to try). The lower lug offset was the same between the original Kayabas and the WPs I fitted.
The difference in front end feel is so much towards the favour of the 20mm offset - it's fantastic. A Revelation. Steering precision, stability, all far, far better than the original 24mm clamp offset.
I've fitted 07 CR250r Showas on a 03 CR2 with the -2mm fork lugs pulled back & felt a slight difference in cornering.
I would consider it to be an upgrade to the newer Showas. The KYB units from that era were decent, but the newer Showas with a a good revalve will give the bike a plusher ride.
At any rate, nice to have options.
http://pulpmx.com/2014/08/28/gps-classic-steel-90-1996-cr250r/
While there had been better turning CR250’s (most notably, 1993), the 1996 was no slouch in the twisties. It was still plenty sharp in the corners and did a good job of walking the tightrope between twitchy and terrifying.
While the ’92 model suffered some growing pains (lack of low-end, chassis flex and frame breakage), the CR continued to be the mount of choice for pros and hard-charging intermediates. For ’93, Honda beefed up the frame and pumped up the horsepower, resulting in one of the best CR250R’s ever built. It still had crummy suspension, but oh could it handle. Nothing could turn under the scalpel-like CR as it roosted away to a sixth straight Supercross title. The ’94 and ’95 season would see minor modifications to the basic ’92 platform. A change in geometry would attempt to tame the bike’s nasty headshake (at the cost of some of that legendary turning) and a switch to Kayaba components would try to alleviate its grim suspension reputation. Even with these mods, however, the basic Honda CR250R formula persisted – a harsh ride, combined with razor sharp steering and a rocket motor. With the ’96 season approaching and a radically redesigned CR250R on the horizon , Honda prepared to enjoy one last go around with the Grand Dame of Supercross.
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