PB Magazine - B4 suspension upgrade - Page 2 - MVAgusta.net
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post #11 of 19 (permalink) Old 06-20-2019, 06:28 AM
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So, your bike is one with single adjustment per leg?

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post #12 of 19 (permalink) Old 06-21-2019, 05:52 AM
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So, your bike is one with single adjustment per leg?

If you mean one leg is rebound and the other compression then yes
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post #13 of 19 (permalink) Old 06-21-2019, 07:09 AM
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So, your bike is one with single adjustment per leg?
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If you mean one leg is rebound and the other compression then yes
Separate compression and rebound circuits in fork legs is becoming quite a common system on a lot of newer bikes. There are some newer MX bikes with the spring in only one side and damping in the other...bigger piston/oil capacity for damping.

I used to be fast....now I just dream about it.
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post #14 of 19 (permalink) Old 06-23-2019, 02:44 AM
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Separate compression and rebound circuits in fork legs is becoming quite a common system on a lot of newer bikes. There are some newer MX bikes with the spring in only one side and damping in the other...bigger piston/oil capacity for damping.
They do that because it's cheaper........
And it also wears forks out faster.......Just think about it .....if only one side is resisting the impact, what happens?
The front end distorts

Remember why they went to monoshocks in the rear? Because it is hard to get 2 shocks exactly the same
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post #15 of 19 (permalink) Old 06-23-2019, 09:56 AM
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The axle size and fork lower tube rigidity has been increased to prevent the differing loads on the sprung and unsprung side from causing deflection.....also, the compression damping resists movement on the damping side, and air gap also acts as a sort of spring in the bottom of the stroke.

If it was strictly cost driven then the factory teams wouldn't be running it.

I used to be fast....now I just dream about it.
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post #16 of 19 (permalink) Old 06-23-2019, 01:25 PM Thread Starter
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I've been out on mine a few times and very impressed. I needed to back off the rebound and compression by 2 clicks front and rear as it was a touch harsh for the roads around here and is now lovely.

When I finally find sometime to get on track I'll up the C&R by 2 again and enjoy!

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post #17 of 19 (permalink) Old 06-28-2019, 07:26 PM
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Quote:
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If it was strictly cost driven then the factory teams wouldn't be running it.
Really? Watch all the IOM tank slappers when the rear tire touches down

In the last 60 years 3 innovative bikes......
Santiago Herrero's '69 OSSA
The ELF
And the Britten

Why? You ask......Simple, motorcycle riders are resistant to change and so are the Factories

Santi's bike
Full monocoque fuel and oil in the frame
Rotorary valve
Electronic ignition
Oil injection
Dry clutch
Hydraulic vane type steering damper
Hydro-pneumatic rear suspension
The one in the museum has water cooling too, but the rear suspension is conventional
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post #18 of 19 (permalink) Old 06-29-2019, 08:10 AM
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The Isle of Man TT bikes aren't factory racers... The bikes I am talking about with spring on one side and dampers on the other are the factory moto-cross bikes....massive suspension travel, and the source of many advancements in street bike suspension.
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post #19 of 19 (permalink) Old 07-02-2019, 06:23 PM
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