I haven't started my nc30 work as yet, but I do suspect that the rear shock may need replacing/servicing at its age.

What's recommended, a rebuild? Or is there a current jap bike shock that can be swapped out simply? I'd rather not be spending close to 1k for a new shock alone.

If somewhere can refresh the shock worth doing or some shocks from other bikes can be fitted there's a thread on forum somewhere about it .

They're easy enough to strip, clean, and put fresh oil in.


Or get a bit more creative . . .

Doc, I like a challenge and a new skill. Any special tools apart from a spring compressor?

Are there parts that 'should' be replaced and are those parts accessible? Oil type and capacity?

I tried to search for the shock swap threat without luck? Any suggestions for alternative search strings?

Spring compressor not required.
Just wind the adjuster right 'off', then you can get the retainer out without too much effort.
Another pair of hands helps.

I think I used 10W fork oil in my last one.
You'll need to drill and tap the reservoir end-cap for a screw-in valve for re-pressurising, or use a simple 'bolt-in' type . . .
http://www.demon-tweeks.co.uk/Product.d ... tAodAAcAuw
Oil capacity is fixed, with the shock rod fully extended, you fill it and the rubber 'bladder' in the reservoir.
It's a little tricky (and messy) getting it filled and bled.

I've done three or four rebuilds, and never had to replace a seal, they tend to last much better than fork seals, as they're not subject to much road c##p being thrown at them, maybe I've just been lucky.

Search You Tube for 'Rear Shock Rebuild', you may not find the same shock being done, but you'll get an idea of what's involved.

If you do get it apart and find you can't finish it, you've not really lost anything, as you can still send it off to be done professionally.