AMP Research research

[danson67]

I need your help… is this an AMP or a Norleen shock?

Certainly looks like a Noleen to me.
That hard anodising and the diagonal knurling on the preload ring don't look like AMP.

All the best,

 

[Swede]

Thanks. I contacted Noleen and they told me it's an NR1 with an 8mm shaft.

 

[mior]

Thanks. I contacted Noleen and they told me it's an NR1 with an 8mm shaft.

NBI on the spring and that grey color is bog standard noleen. NR1 means no adjustments all the way up to NR4 with rebound and compression
NR1= spring preload
NR2 is rebound and preload
NR3 gets no rebound but a piggyback and preload, as well as adjustable eye to eye (this shock is on the GT RTS only)
nr4 is all the bells and whistles minus the eye to eye

 

[Roadless]

Hi all, I have my eyes on a B2, but seeing all those circlips and pivots has me wondering if I can still get parts to maintain it. I doubt I'll but more than a couple hundred miles a year on it. But still.

 

[Swede]

The DU bushings are sacrificial and are still available. You just need to know the dimensions when ordering. I had a quick look online and found these;

https://www.ggbearings.com/en/our-products/metal-polymer-bearings/du

https://simplybearings.co.uk/shop/Products-Bronze-and-Wrapped-Steel-Bushes/c4747_5234/index.html

Pivots might be a bit more challenging as the one on my B5 was bend and I had to get a machine shop to make a new one.

 

[Roadless]

The DU bushings are sacrificial and are still available. You just need to know the dimensions when ordering. I had a quick look online and found these;

https://www.ggbearings.com/en/our-products/metal-polymer-bearings/du

https://simplybearings.co.uk/shop/Products-Bronze-and-Wrapped-Steel-Bushes/c4747_5234/index.html

Pivots might be a bit more challenging as the one on my B5 was bend and I had to get a machine shop to make a new one.

Thanks for the reply. It is good to know the sacrificial parts are out there. I enjoy diassembling things to see how they work and maintaining them, but not so much scavenging parts no longer available. And eBay sellers don't often know their bikes. It is just in "good working order" regardless of wear if the wheels spin and brakes engage.

There is a B5 a day's drive away with a front disc brake that "doesn't work." I have seen enough entries in this thread on disc brakes to want to steer away from that one all together.

If i make the purchase, it would no doubt require some new tools, as well. Always a good sign of a new interest.

 

[Swede]

I love an excuse to buy new tools….

 

[93hero]

Buying F2s was the reason I bought circlip pliers

 

[Roadless]

Buying F2s was the reason I bought circlip pliers

Can you comment parts availability?