K2 / Proflex Riders Group
General => Tech Forum => Topic started by: Simon on January 24, 2016, 12:11:41 pm
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I didn't realise Noleen was still going and still do the Nr1,2 & 4 shocks for Proflex even the cone mounting type.
They also supply shock and fork rebuild kits even lubes probably suitable for suspension linkage.
Funny only come across the site looking at Vintage MX shocks.
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linky's (http://shop.noleenj6.com/category.sc?categoryId=7)
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Links
http://shop.noleenj6.com/main.sc (http://shop.noleenj6.com/main.sc)
http://shop.noleenj6.com/category.sc;jsessionid=F3E174EF1DDD00188136E898CB05272C.m1plqscsfapp02?categoryId=7 (http://shop.noleenj6.com/category.sc;jsessionid=F3E174EF1DDD00188136E898CB05272C.m1plqscsfapp02?categoryId=7)
http://shop.noleenj6.com/category.sc?categoryId=6 (http://shop.noleenj6.com/category.sc?categoryId=6)
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Yes they've never stopped selling Nr shocks for Proflex. Very good shocks but pricey to the UK with the import duties.
Chris
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Yes they've never stopped selling Nr shocks for Proflex. Very good shocks but pricey to the UK with the import duties.
Chris
Ah that's why you purchase from the states and have it sent to one of our American friends ;) to then have them send it onto to you :).
It saves a ton of money, parts state side are cheaper than the UK and with a favourable exchange rate its worth the effort.
As you can guess with my MX restorations I do this a hell of a lot .
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Ha I guess there's always a way! :)
Chris
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Bringing this one back from the dead...my Smart Shock is in need of attention, i tried and contact NoleenJ6.com using their contact form but received no reply. Anyone aware of them still being servicing the Smart Shock or even the NR4 ?
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Last time I enquired, they don't service NR-5 Smartshocks back to OEM standard, what they do is "dumb" it down to being a NR-2.
There's a German outfit offering to do them on eBay, but expensive and probably not viable for our Colonial cousins..........
http://www.ebay.co.uk/itm/Dampfer-Service-Wartung-an-Noleen-Dampfern-maintenance-damper-/141730863987?hash=item20ffd15b73:g:tFsAAOSwjVVVuM60 (http://www.ebay.co.uk/itm/Dampfer-Service-Wartung-an-Noleen-Dampfern-maintenance-damper-/141730863987?hash=item20ffd15b73:g:tFsAAOSwjVVVuM60)
Probably better to look at modern shock replacements? e.g. Fox RP23
Col.
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Uhm, they do not ship to the US, more than expensice sound impossible! I could send the shocks next time I go to Italy but that means I would have to wait next year to ride the bike again (I go once a year to visit with parents). I did get the rebuild kit in the mail today so rebuild it myself 'could' be a possibility, but I need a few pointers on how to take the shock apart. Off course the most logic choice would be a new shock but I guess it would be worth a trying being at a loss anyway...
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Also, does that mean that used, old, unserviced SmartShock can be had for cheap? Or maybe not?
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Also, does that mean that used, old, unserviced SmartShock can be had for cheap? Or maybe not?
All I can say is my Smartshocks sucked. They failed fast and I sold them off. As far as I am concerned the smartshock technology is ass backwards.
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What are the actual specs of the Noleen shocks that came stock on the Proflex/K2 bikes ? I search everywhere but I could not find a straight forward answer to this question. The goal is to determine a suitable replacement with a more modern shock. Both my shocks are shot so I can't really tell other than the fully extended length.
Thanks you
P.S. Also a link to an existing list of known fitting replacement would be great if it actually exists...
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I've never seen any "specs" for the NR range of shocks other than their functionality:
NR-1 Pre-load only
NR-2 Pre-load and Rebound
NR-4 Pre-load, Rebound and external Compression damping
NR-5 Pre-load, Manual Rebound and "Smart" Compression damping.
Then you need to select an appropriate spring for your weight when riding. ( see table here http://idriders.com/proflex/resources/99spring_chart.pdf (http://idriders.com/proflex/resources/99spring_chart.pdf))
Then set the Sag which should be 20%of travel using the pre-load spring retainer threaded on the main body.
Then set the rebound and then the compression damping depending on your style of riding and terrain.
I don't know of a list of known replacements, main criteria is length and travel, but many air shocks foul the mounting points, so it's a bit trial and error or modding.
Let's start one here!
Options I know of are:
Risse
Fox RP23
Fox Float Talas (modding of lower mount point)
Manitou Swinger
Col.
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Colin,
would it be correct to spec both shocks at 8.5"/2.5" with different spring rates between front and rear ? The spring rates listed by the documents you mentioned would be valid with any other shock from other manufacturers?
Thanks a bunch for your help!
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Last time I enquired, they don't service NR-5 Smartshocks back to OEM standard, what they do is "dumb" it down to being a NR-2.
The NR-4 is a better shock anyway.
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Colin,
would it be correct to spec both shocks at 8.5"/2.5" with different spring rates between front and rear ? The spring rates listed by the documents you mentioned would be valid with any other shock from other manufacturers?
Thanks a bunch for your help!
I am certain that the shocks are 209mm (8.23") long i2i and have a shock stroke of up to 50mm (2") for the NR-2, the coil springs are from 89 to 105 mm long and have a "bind" limit compression of 2".
You could go a bit longer with more "sag". Measuring my medium 4000se, the travel limits of the swing arm result in shock lengths of 130mm – 240mm (hit points) safe is 135 – 235mm.
Yes the spring rates should be valid and constant as it is dependant upon the leverage ratios of the swing arm.
Col.
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Thanks Colin, that's good info to have.
Cheers!
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Again showing my infinite ignorance on this subject, would it be correct to say that I can purchase the same shock for the front and the rear and then just use different spring ratio/air pressure ?
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The lower shock mounts are different. The rear shock uses a conical interface to attach to a strut; the front shock has a pivot.
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My bike is a K2 4000, the mounts, while of different sizes, are of the same type.
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i2i length for a front shock on the Crosslink is 205mm.
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My bike is a K2 4000, the mounts, while of different sizes, are of the same type.
Oh, sorry, I forget that K2 bikes are discussed here as well.
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Anyone ever rebuild the old shocks them selves?