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Offline plaaty

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gen 1 suspension question
« on: May 22, 2020, 08:27:17 PM »
Hi all, I'm hoping for a little bit of insight as to the best way to improve the suspension on my bike, its a 2015 xc.
I find the front is harsh, I seem to feel all the small bumps, I've wound the preload off all the way and it is a bit better for comfort but I think the handling suffers.
The rear squats a lot 2 up with luggage, even with the preload wound right up.
Ive priced up  Wilber's, Hagon and m-shock but wonder if there is a cheaper option, like a Hyperpro spring?
any thoughts or experience would be great

Offline Robin

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Re: gen 1 suspension question
« Reply #1 on: May 22, 2020, 10:20:14 PM »
Yes

Book an appointment with MTC suspension. While you wait they will be able strip and rebuild the suspension to improve the feel for the front and rear and set it up for your weight.

In my case they fitted a heavier spring to the rear shock so that as a single rider it needed no preload. I could then add preload for pillion and luggage rather then having the standard spring preload maxed out all of the time.

Afterwards they send you out on a short test route so that you can evaluate the set up and have them adjust it if necessary.

I think it cost me about £550.00 but it completely transformed the bike and it was expertly set up for me.
Older than the internet.

Offline plaaty

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Re: gen 1 suspension question
« Reply #2 on: May 23, 2020, 06:51:28 AM »
thanks for the info
They were on my list to call yesterday, but didn't answer.
I'll definitely wait till I speak to them before I make a decision

Offline mjab

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Re: gen 1 suspension question
« Reply #3 on: May 23, 2020, 07:23:50 AM »
*Originally Posted by plaaty [+]
thanks for the info
They were on my list to call yesterday, but didn't answer.
I'll definitely wait till I speak to them before I make a decision

Another one for MCT here. Maybe there are shutdown at the moment with the Lockdown?

My bike was only 10500 miles old when I took it there in 2017. The front had extra air hole either side with same springs and oil spec and the rear I opted for a Nitron R1 shock with a remote preload adjuster rather than using a screwdriver to adjust the preload.
Rear set up for my weight plus additional pillion or luggage plus pillion and luggage settings advised.
All in all 3 hours and Darren sends you out on a really bumpy twisty road to test and be amazed at what it has done.

I'm convinced mine rides better than the new 1200 model with its automatic set up.



4 wheels move the body
2 wheels move the soul

Online moggi1964

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Re: gen 1 suspension question
« Reply #4 on: May 23, 2020, 10:59:42 AM »
I got the Wilbers 640 from Revs and they tweaked my standard front valving. It was an improvement but not everything I was looking for.

I took the forks off last month and sent them up to Teut at TWS in Preston and supplied him with some Racetech springs I had bought in the USA. He machined some spacers for them (the  Racetech are quite a bit shorter than the stock) and did some valve work as well. Of course, I have only ridden a few times since lockdown so can only tell you that I love the way the front end now feels planted. I need to set the sag but haven't got around to it yet. Normally I would go and see Teut so he could do that as part of his service but....!

I'm overdue a service of the Wilbers and really ought to take it off now but it'll have to wait till the next paycheck plus there is a bank holiday ride to my dad's where I'll stand by the bike and he'll stand by his front door and we'll catch up.
Moggi

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Offline XCaTel

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Re: gen 1 suspension question
« Reply #5 on: May 23, 2020, 12:21:00 PM »
*Originally Posted by plaaty [+]
I've wound the preload off all the way and it is a bit better for comfort but I think the handling suffers.

This is because preload really has nothing to do with the softness or harshness of the ride. Preload is simply there to set the sag on the fork or rear shock for the load you are putting on the bike. If you drastically change the preload one end of the bike without a thought to the bikes overall geometry you can drastically alter the handling. You are changing the bikes trail and this is why you get different handling traits around corners. Treat preload and damping like two separate things. Get sag right first without a thought to any damping, once done then look at the damping, go fully soft front and rear then fully hard to get a feel for the range the bike will do. Then if you are not satisfied go to a suspension shop. My 2016 Africa twin had a hopelessly low spring rate at the rear end, a cheap €100 +20mm Hyperpro spring put it back right, sometimes the fix is real easy.

Offline plaaty

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Re: gen 1 suspension question
« Reply #6 on: May 23, 2020, 07:55:51 PM »
yeah I know what you mean with the preload, I had just hoped it would get the front end moving a bit.
I did the same with my Africa Twin, even with three empty luggage boxes on it used to sag loads, the Hyperpro transformed it.... still couldn't get on with the rest of the bike though, DCT, buffeting, uncomfortable etc  :003:
I was wondering if a hyperpro spring would sort the back of the explorer

Offline XCaTel

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Re: gen 1 suspension question
« Reply #7 on: May 23, 2020, 11:11:57 PM »
I knew the +20mm Hyperpro was going to work on the Africa Twin because the excessive rear sag was so obvious. A lot of people rush out and change the spring in a fork or shock but don’t really know why. It can be very difficult to find out your stock spring rate and that of any aftermarket replacements. You see these “spring replacement kits” One size fits all, total rubbish unless you know what you have and what you are replacing it with. That is where the value of a specialist comes in I think but only after exhausting all stock combinations.

Offline Tiger T.O.

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Re: gen 1 suspension question
« Reply #8 on: May 25, 2020, 04:11:13 PM »
I can confirm that just the Hyperpro rear spring combined with the original damper worked perfect on my Gen 1  :028:
 
There are two kinds of people, those saying the glass is half full and those saying the glass is half empty. But the world really belongs to the ones that say “That’s not my glass! My glass was full! And it was a bigger glass!”             Terry Pratchett  R.I.P.

Offline Freddy58

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Re: gen 1 suspension question
« Reply #9 on: May 25, 2020, 06:54:52 PM »
*Originally Posted by plaaty [+]
Hi all, I'm hoping for a little bit of insight as to the best way to improve the suspension on my bike, its a 2015 xc.
I find the front is harsh, I seem to feel all the small bumps, I've wound the preload off all the way and it is a bit better for comfort but I think the handling suffers.
The rear squats a lot 2 up with luggage, even with the preload wound right up.
Ive priced up  Wilber's, Hagon and m-shock but wonder if there is a cheaper option, like a Hyperpro spring?
any thoughts or experience would be great

for the front fork - the only way to change the damping easily is to change out the fork fluid with something thinner.

Something that's not as expensive as other options - a new set of fork seals (the OEM stick a bit, you'll notice it on light small bumps - the fork won't compress and the energy is transferred to the bike). I swapped those out for SKF seals... while I was in there I shimmed up the inner fork tube bushing - they fit very loose, that can make a bit of a difference too - no more fork free play. The SKF seals made a noticeable difference.

aftermarket fluid and the SKF seals can help. Beyond that you'll need something done internally to the forks. I ended up gutting the forks and putting in traxxion dynamics cartridges - and those are adjustable for compression/rebound damping (does make a difference).

 


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