Hi.
Having recently found out GT Performance no longer refurb rear shocks, can someone recommend a company that would do this to a similar standard. This would preferably include hydraulic and body parts of the shock. I am sure that there are after market one's out there that would do a better job, but I would prefer to keep it standard. Any suggestions welcome thanks in advance.

You could try this company
https://www.mhracing.com/
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Why do things simply when you can complicate them

CD748R

If you do give MH racing a buzz please let us know how you got on
Would be very interested to get mine fully rebuilt

Try Brook Suspension.
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Andy.
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Don't know where you are in Norfolk, but you could give these a call/visit? not sure they work on old/standard stuff?

https://www.mctsuspension.uk/

Thanks for the suggestions, I will chase them up and get an idea of how far they go with rebuilds and see how interested they are, especially with the start of the race season close. I have used MCT Suspension in the past for fork servicing and minor upgrades, on older and newer suspension ( 20+ year old stuff being the newest) but I'm not sure how far he would go with a rebuild, I will enquire though as he is about 55 miles from me.

Cheers Carl.

I have had a couple of replies regarding refurbishing shock, one thing it has highlighted is it could work out quite expensive and you would still end up with a standard shock. This is making me think it might be better to buy an aftermarket one, I know Ohlins and Nitron (nitron would also do a red spring for a bit extra) do one to fit are there anymore worth considering ? Because I have never ridden the bike I don't know how good the original shock is, I was keen to keep it standard but I am no longer sure. Your opinions would be helpful for me to make a decision based on your own experience's. My bike is a MC21 SP version if that makes a difference to your answers.
Thanks Carl.

To be fair, I was never fast enough to really care how good/bad an SP shock is! Pretty sure my talent ran out long before the shock's performance ever did!

They work pretty well in my personal opinion, certainly on the road, and we did loads of them while I was at GT Performance. However, we did often fit a stronger spring, as they're naturally undersprung for most westerners... especially in the 21st century!

I seem to recall we did Tom Sewell's SP shock with an Eibach spring. I'll drop him a line to check, and ask him to pop by and comment on it. I know he'd done plenty of track days on his 21 since we worked on it.
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Andy.
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Thanks for the reply Andy, that was the sort of info I need to help me make a decision, it would be good to hear from Tom as his opinion would be valued, especially with him doing track days and using it to more extremes than riding on the road. I did get in touch with Brook Suspension but they no longer do that type of work. Am I right in thinking that the SE shocks were the same as the SP ones ?
Spud_MC18 I have spoke to Mark at MH Suspension and he is quite happy to rebuild mine, they can replate, anodise, re-gas and replace the internals as required, pricing would obviously depend on general condition although there is a reasonably accurate price for just the overhaul without the cosmetic stuff.

Carl.

Tom posted this in the Member's area, so just in case it gets missed, I've quoted it here too:

thesewellguy wrote:
Some images and details of the standard MC21SP rear shock full strip and rebuild using Eibach spring.

Original SP shock is good enough for road|track use, but beefier spring is needed for our anglo-saxon build. Been running this set-up for a decade now. Does the job well - as an upgrade I fully recommend.

Original topic here:

http://www.nsr250.net/forums/viewtopic.php?t=15657
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Andy.
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It's a fairly easy job to do yourself. I put a post on here a while ago with a step by step guide The only specialist tools you will need are for charging the nitrogen and you will either need to fit a shraeder valve to the end cap or get a replacement with a valve fitted. Most motocross dealers or suspension shops can charge the nitrogen for not much money.
Seal kits are generic and available from KTech,while it's apart you can get the body re plated and fit a nice HEL braided hose.

I'll probably convert PaulG's post on the rebuild (and some other Members' posts) into articles on the new site at a later date.

I may get another run of these made, if there's enough demand.



Suitable for a range of Honda rear shocks including NC29/NC30/NC35.
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Andy.
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paul g wrote:It's a fairly easy job to do yourself. I put a post on here a while ago with a step by step guide The only specialist tools you will need are for charging the nitrogen and you will either need to fit a shraeder valve to the end cap or get a replacement with a valve fitted. Most motocross dealers or suspension shops can charge the nitrogen for not much money.
Seal kits are generic and available from KTech,while it's apart you can get the body re plated and fit a nice HEL braided hose.

Thanks Paul I might consider doing that, I will have a look for your post.