K2 / Proflex Riders Group

General => Tech Forum => Topic started by: Akagi on July 28, 2008, 03:27:47 am

Title: NR1, NR2 springs.
Post by: Akagi on July 28, 2008, 03:27:47 am

Hey guys. Got a question about the springs found on Nolleen Nr1, and Nr2 springs.

Are the front and rear springs interchangable (x57 series)?

Also, anyone know where I can find a 175pound (front) crosslink spring   ???

Title: Re: NR1, NR2 springs.
Post by: Colin on July 28, 2008, 05:12:48 am

Wellllll..........yes...........they are usually the same length, but different weight ranges:
175 to 250 for the Crosslink, 200 to 400 for the rear end on an x57

a 175 on the front implies that you are sub 140lb in weight?

I think 175's were the lightest they did, but I havn't got one sorry.

Col.

Title: Re: NR1, NR2 springs.
Post by: shovelon on July 28, 2008, 09:02:34 am

Quote from: Akagi on July 28, 2008, 03:27:47 am

Hey guys. Got a question about the springs found on Nolleen Nr1, and Nr2 springs.

Are the front and rear springs interchangable (x57 series)?

Also, anyone know where I can find a 175pound (front) crosslink spring   ???

Well I guess they would be interchangeable. 175 lbs is pretty light. Maybe in a pinch you could reduce the diameter of your current crosslink spring to match a 175pound. I have done it with a belt sander. An old Harley motorcycle trick.

Terry

Title: Re: NR1, NR2 springs.
Post by: rapiddescent on July 31, 2008, 10:05:50 am

I bought a big box of noleen springs for testing back in the nineties - they weren't always very accurate and many had the same 'weight' measurement but were different by up to 10%.   

They were the same spring length but fronts were made from a thicker wire and had more coils than the fronts.  You can actually use a front on the rear for very light riders.

callum
rds

Title: Re: NR1, NR2 springs.
Post by: Akagi on August 02, 2008, 12:10:19 pm

Thanks for the suggestions.

Right now I have minimal preload and the other day I was riding through a rocky section and I found it very harsh.

I guess I can also pack in some cheeseburgers and gain some weight :P

Title: Re: NR1, NR2 springs.
Post by: Akagi on August 02, 2008, 12:17:48 pm

Hmm.  I just consulted the spring chart document.  There seems to be a 10pound overlap and I fit into the recommended weight for my current springs.

Perhaps mine arent accurate and errors to the heavier side, as callum said, or perhaps its jsut overdampened.  Because I found it harsh to the point where it was painful during some rocky sections of my last outing.

Oh well.

Title: Re: NR1, NR2 springs.
Post by: kiwi on August 03, 2008, 12:15:37 am

if you are anywhere near a spring place they will "rate" your springs for you...they just measure the spring and apply well known properies to it to come up with a rate.