Help with Noleen shock identification

[ToSloTrk]

Looking for some help on a Noleen shock I bought many years ago for a project that never happened.

I think it's a Noleen NR4 that may have been modified with an eyelet on one end.

Any help on what bikes the shock would be compatible with would be appreciated.

                                      Thanks,
                                            James

[Spokes]

Hi James
Yes it is a Noleen NR4 and it was first fitted as standard to the rear of the 957 (without the eyelet). It can be used on any of the '57 range and the later rebranded K2 bikes of the same design.
I think this length cone shock will also fit the rear of the '55 and '56 series aswell. Some correct me if that wrong.
With the eyelet fitted it is to short for the later 4000/5000 and 4500/OZ as their eye to eye length is just over 100mm.
Dont know about the Evo range but I suspect it will be too short for these aswell.

Chris

[fyrstormer]

I gotta say I'm not too comfortable with the look of that add-on eyelet. If the mounting screw failed in the shock's original application, the friction-fit between the cone and the strut should at least withstand a couple hits before coming dislodged, which would give the rider a chance to slow down after hearing the distinctive sound of a bolt breaking. With that eyelet attached, if the mounting screw fails, the shock will instantly stop supporting the rider's weight.

[Colin]

I gotta say I'm not too comfortable with the look of that add-on eyelet. If the mounting screw failed in the shock's original application, the friction-fit between the cone and the strut should at least withstand a couple hits before coming dislodged, which would give the rider a chance to slow down after hearing the distinctive sound of a bolt breaking. With that eyelet attached, if the mounting screw fails, the shock will instantly stop supporting the rider's weight.

Agreed.

Chris, correction: the e2e on shocks for "Two tubes" and Carbons (EVO/4000/5000/4500/5500/Oz) is 209mm (8 1/4"), which this shock looks to be achieving (8 1/2 "??).

James, I'd suggest that it's more valuable sold with the eyelet removed to fit the x56 and x57 style bikes

Col.

[ToSloTrk]

Can anyone give me the sixe and pitch for the threads on an '56 or '57 bike so I can verify if it has been rethreaded or not?

                     Thanks

[fyrstormer]

It's the same as the threading on the bolt that holds the upper mount in-place. Just take that bolt and thread it into the lower mount to check if the threading has been changed.

[ToSloTrk]

It's the same as the threading on the bolt that holds the upper mount in-place. Just take that bolt and thread it into the lower mount to check if the threading has been changed.

I don't have a Proflex bike around to check on

[Colin]

"M6 x 1 x 23 Special SHCS"

Col.

[Spokes]

I gotta say I'm not too comfortable with the look of that add-on eyelet. If the mounting screw failed in the shock's original application, the friction-fit between the cone and the strut should at least withstand a couple hits before coming dislodged, which would give the rider a chance to slow down after hearing the distinctive sound of a bolt breaking. With that eyelet attached, if the mounting screw fails, the shock will instantly stop supporting the rider's weight.

Agreed.

Chris, correction: the e2e on shocks for "Two tubes" and Carbons (EVO/4000/5000/4500/5500/Oz) is 209mm (8 1/4"), which this shock looks to be achieving (8 1/2 "??).

James, I'd suggest that it's more valuable sold with the eyelet removed to fit the x56 and x57 style bikes

Col.

Ah yes agreed, I meant to say just over 200mm. Also agree that the shock is probably worth more as is.

Chris