Author Topic: rear shocks length  (Read 235 times)

Offline billdn

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rear shocks length
« on: July 06, 2018, 02:51:17 PM »
What is the correct length ,centre to centre for the rear shocks on the 400/4? David Silver patterns come in at 315mm,those I have are 320 centres and various other manufacturers go up  to 345 mm and listed as for a CB 400/4.

Offline Nurse Julie

  • 1973 CB750 UK K2.1977 CB550/4 Mongrel Brat. 1978 CB400/4.
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Re: rear shocks length
« Reply #1 on: July 06, 2018, 02:57:32 PM »
I have TEC shocks fitted and they are 320mm centre to centre.
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Offline TrickyMicky

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Re: rear shocks length
« Reply #2 on: July 06, 2018, 08:45:43 PM »
Hi there, have just been out to the garage and measured my shox, and they are 320mm between centres. Your query hit a nerve with me because I purchased a pair of replacements of very similar design without checking the length!!!! When fitted, the extra length meant that the rear axle nut fouled the silencer, so instead of calling it a day I managed to re-jig the silencer mounting, (Pillock!). When all this was accomplished everything looked ok until I realised that the rear wheel was only just off the ground when on the stand, and when the bike was taken off the stand it fouled the lower run of the rear chain! Removed, returned to seller for prompt refund, and took my time and eventually found a pattern pair that are a perfect match in size, looks, and capability. Do not fit any that are a different length!!!!!! Regards, Michael.

Offline Nurse Julie

  • 1973 CB750 UK K2.1977 CB550/4 Mongrel Brat. 1978 CB400/4.
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Re: rear shocks length
« Reply #3 on: July 06, 2018, 09:02:41 PM »
Haha, love that. At 320 mm mine almost touch the exhaust when on centre stand but plenty of clearance when sitting on bike. The originals were 315 mm.
Im a Nurse, trust me, this won't hurt.....much !!!

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline gtmdriver

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Re: rear shocks length
« Reply #4 on: July 10, 2018, 02:52:37 PM »
As you have found most after market rear dampers with the lower forked fitting are not quite the correct length.

The only ones that are exactly as needed are the Tec shocks.

Offline billdn

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Re: rear shocks length
« Reply #5 on: July 23, 2018, 08:32:58 AM »
Thanks all, TEC shocks purchased and fitted. Good fit and speedy service and not too expensive. Also bought adjustable jota bars to add a bit of style to rebuild.