KRTT, KHRTT, and XLRTT shocks

Racing K Models

KRTT, KHRTT, and XLRTT shocks

Postby hugoct » Sat Nov 03, 2018 9:31 pm

KRTT, KHRTT, and XLRTT shocks:
54404-53R 1953-58
54404-59R 1959-62 (alloy sleeve and alloy spring retainer)
54504-59RA 1963-67
54504-67 1968-69
Any good pictures ?
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Re: KRTT, KHRTT, and XLRTT shocks

Postby No side stand » Sun Nov 04, 2018 5:54 pm

Hi hugoct. I also have a set of alloy spacers somewhere that have some racers tinkering (lightening) done to them, but cant locate them at the moment.

PB050008.JPG
PB050008.JPG (64.57 KiB) Viewed 766 times


Steve
No side stand
 
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Re: KRTT, KHRTT, and XLRTT shocks

Postby Simon » Tue Nov 06, 2018 1:19 am

Here are some more pics of the Heco shocks...

xlr shock.jpg
xlr shock.jpg (177.32 KiB) Viewed 715 times


XLR shock 2.jpg
XLR shock 2.jpg (255.07 KiB) Viewed 715 times


I have a couple of sets of the big early shocks, but no pics handy yet.
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Re: KRTT, KHRTT, and XLRTT shocks

Postby AnotherProject » Tue Nov 06, 2018 1:59 pm

Apologies, but just so I'm clear - which shocks in the photos above relate to which Part No.s?

54404-53R 1953-58
54404-59R 1959-62 (alloy sleeve and alloy spring retainer)
54504-59RA 1963-67
54504-67 1968-69
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Re: KRTT, KHRTT, and XLRTT shocks

Postby Simon » Tue Nov 06, 2018 8:59 pm

The ones with the less tightly coiled springs are the '63 ones, the ones with the chrome springs are the '59 ones.
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Re: KRTT, KHRTT, and XLRTT shocks

Postby xlh59 » Wed Nov 21, 2018 3:42 am

This is maybe a bit "off topic", but as the topic is "R" shocks ...

As the 63R shocks are the best looking shocks I have ever seen on an ironhead, I have been looking for them since ages. Unfortunately they are to rare to be available for reasonable prices. Paying 1500 US$ for a set of 50year old de-carbon shocks, that will definitely need a serious rebuild from a professional which costs another 1000 US$ seems to be beyond any rational idea.

There is a well known company in Germany that produces motorcycle shocks also "on special order" -- and I was thinking to have some sets of reproduction 63R shocks produced. Not to gain any profit, just for me and some friends and whoever is interested. Besides the fact that anyone who is interested could let me know, I would need someone nice here, that is in the position to provide measurements from the original shocks -- of course the reproduction should look like an original shock and not only "close to". Anyone having access to a set of shocks and would provide data?

Have a look at my current 3D model of the 63R shock -- I am serious about this:

Render 63R rear shock.JPG
Render 63R rear shock.JPG (20.16 KiB) Viewed 432 times
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Re: KRTT, KHRTT, and XLRTT shocks

Postby Noot » Tue Nov 27, 2018 3:05 pm

Heck yes . . . I might be interested if the price was right, and they weren't too soft. ;)
I like the aluminum ones too....
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Re: KRTT, KHRTT, and XLRTT shocks

Postby xlh59 » Wed Nov 28, 2018 1:06 am

The price should be reasonable as no "piggy back" or other fancy stuff is used. The springs would need to be ordered by bike/driver weight -- thats how they do it. Most likely with adjustable rebound.

The aluminum shocks are modified XLCH shocks and the upper part is still available NOS from jwboon. As far as I know the lower part was fabricated to the riders demand, as it adjusts the preload and is just an aluminum sleeve.
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