Honda VFR800 VTEC rear shock YSS MZ506-320TRL - will it fit?

nickkeenan · L Plate Warrior Joined: 07 May 2022 Karma :

Hello,

I'm replacing my worn out rear shock on my 2005 Honda VFR800 VTEC A5 and I've been given a YSS Shock MZ506-320TRL (which fits a VFR750 RC36). The YSS Shock that fits the Honda on their webpage is the MZ506-320TR.

So looking at the part numbers, which I presume are measurements, refer to the diameter etc (and they're the same)...and I'm assuming that the 'L' in the one that I've got refers to LONG.

I'm just wondering if the diameter is the same, and the connections are the same, what will happen if I replace my old one with this new one? Has anyone tried this?

Many thanks for your help!
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Nick K

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

TRL means Threaded; Rebound adjustment, Length adjustment.

So they are exactly the same spec shock other than you can adjust the length of the one you have by screwing one end in and out by about + or - 5mm.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

nickkeenan · L Plate Warrior Joined: 07 May 2022 Karma :

Thank you so much for your help! I wish google was that informative!
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Nick K

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

Zen Dog · World Chat Champion Joined: 11 Aug 2004 Karma :

Since we're on this pretty niche subject, do you know if the shock for the 5th gen is significantly different from the 4th and 6th gen ones?

To me (and this is honestly just from feel alone) the 5th gen feels like it has a shorter stroke and is less plush than either of the ones I've had on my 750.
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Current - '94 VFR750FR, '00 VFR800FI Previous - '10 Street Triple R, '92 MZ ETZ301, '05 TTR250, NSR125R, KMX125, "Honda" Win (chinese copy of an old Honda design with a C90 engine)
My bike trip around S.E. Asia 2010/2011

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

Zen Dog · World Chat Champion Joined: 11 Aug 2004 Karma :

After doing a decent amount of riding on the 800 now, I've come to the conclusion that the 750 is definitely the better bike. Not massively, but it's slightly better in pretty much every area.

The 800 has FI which should be a plus really, but it definitely robs the engine of some character. It has daft dual radiators like the firestorm. The handling isn't as good, the rear feels harsh and I get better feel from the front of my 750. They replaced the fairing fastening system with one involving compressing little rubber bungs that seize and then just rotate in their holes. Loads of other little things, but even the one area it should definitely win on, the brakes, which are definitely the weakest bit of the 750, they managed to bugger up with the linked brakes nonsense.

It just seems like the 750 is over engineered in the positive sense of the term, and the 800 in the negative sense of it. Feels like with the 800 no-one ever said to the engineers "that's new and interesting and kinda cool from an engineering perspective, but is it actually better?"
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Current - '94 VFR750FR, '00 VFR800FI Previous - '10 Street Triple R, '92 MZ ETZ301, '05 TTR250, NSR125R, KMX125, "Honda" Win (chinese copy of an old Honda design with a C90 engine)
My bike trip around S.E. Asia 2010/2011

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

I liked my 800 but wished it was 50kg lighter and had decent suspension. Also another 20-50bhp would have been useful.

Then I rode the GSX-S1000F. It's almost better in every single way. The few ways it isn't better are as follows:

No wrap around screen so wind protection isn't quite as good, but wind tunnel tested so not actually all that bad

Build quality. Up there with Suzuki's best, but not with Honda's best.

Tank range, although it's good enough, it's not 220 miles good.

No ambient temperature gauge

But otherwise it's just better. Really great quality suspension at both ends, Brembo stylema calipers, more upright riding position, much less weight, 50 more horsepowers, better headlight etc. I'm glad I was forced to switch by the ULEZ, but a lot of that could be down to the fact that it's 18 years newer too...
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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :