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Metric shocks - why...
 

[Closed] Metric shocks - why the fuss

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Ignore the word 'metric' that's just a convenient differentiator to the old imperial sizes.

That much i can follow! 😆


 
Posted : 13/10/2017 2:58 pm
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See above, telescopic forks aren't all that great so you end up with six of one and half a dozen of the other.

Despite the fact that Moto GP teams, works MX teams etc etc - with their huge budgets - all choose to stick with telescopic forks. Funny that. I believe that it's because telescopic forks tend to be stiffer and more reliable and an unpredictable, non linear axle path tends to **** with riders heads. Sure you can cut out brake dive mechanically, but dive actually seems to be useful to exploit anyway for making tight corners.

Again, my 36's don't spike anymore than my DHX2 200x57 - the damping in terms of feel in the real world is equal. The only difference is that the rear, for shock absorption has a more rearward axle path around the sag point - and the fork feels stickier because it's using a 1:1 leverage ration - irrespective of whether it's loaded or not.

216x63 was pretty much standard for Enduro bikes before Metric, so I am sure lots of people could swap their shocks. I can't imagine the difference between 65mm and 63mm in terms of damping, is worth a ****. Not compared to piston design, valving design and damper friction. And the 16mm of size difference doesn't seem worth much as the shock ends up being physically similar in length in reality anyway.

Sorry, I just don't believe that metric shocks were a good thing - that offer us noticeable improved performance. I think the gains are marginal at best.

It's just a new/better shock design than the old eyeletted design, that isn't backwards compatible and just happens to be in metric sizes.

Again, can someone explain to me why trunnion shocks aren't seen elsewhere on motorbikes? You make it sound simple, that it's just a better design - but the cynical part of me that knows that motorbikes have always and still are at least a decade ahead of the mtb world - are not behind the cycling world on this.


 
Posted : 13/10/2017 9:27 pm
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So why are you so upset that you can't fit one?


 
Posted : 13/10/2017 9:39 pm
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Rationalised in order to make production cheaper and maximise profit, anything else is just sales talk.


 
Posted : 14/10/2017 7:46 pm
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Again, can someone explain to me why trunnion shocks aren't seen elsewhere on motorbikes?

Possibly because they don't have the same packaging constraints.

As I understand it, the trunnion mounts allow the new airsping design to be accommodated on a shock that has a shorter eye to eye measurement while maintaining the stroke length. I've not checked this, but I assume the trunnion shocks will be the shorter ones. Or they can fit longer stroke shocks in a smaller space. The extra stroke appeared to have been used to improve the damper design.

It could all be made up, but the extra space allowed by the new dimensions makes it possible to produce a better spring and damper. Wheather many people can benefit from the improvements is a good question, but they certainly look different on the inside.


 
Posted : 14/10/2017 10:57 pm
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The extra stroke appeared to have been used to improve the damper design.

But yet they still failed to produce a better damper than either a 200x57 Ohlins or DHX2.

Possibly because they don't have the same packaging constraints.

They look like they have more to be honest, especially when you have to consider the effect of engine placement on weight distribution.

[img] [/img]


 
Posted : 16/10/2017 12:18 am
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That is an impressive machine, but I feel compelled to point out that there is an awful lot more room for a shock in that bike than there is in any mountain bike I can think of.

You may have to accept that motorsport implementations of suspension will always be better than those in bicycles. There is more money involved for one thing.

Öhlins and Fox shocks may be better than those made by Rock Shox because they may be designed and manufactured by people who are better at what they do. This is good for you as it means you won't have to loose out when you don't by Rock Shox.


 
Posted : 16/10/2017 3:44 am
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Motorcycle shocks are huge (and heavy) in comparison to any mtb shock


 
Posted : 16/10/2017 7:16 am
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Yeah it's always a standard line when you get stuck into a corner
"BUT Motorbikes!!!!"
Given the performance from even the budget end of MTB shocks these days and the array of adjustment at the top end I've come to the conclusion that some people are never happy 😉

My bike has a metric shock, it seems to work.


 
Posted : 16/10/2017 7:18 am
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