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post #1 of 11 Old 12-29-2012, 05:28 AM Thread Starter
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Rear springs advice

Hi my partner and I do a lot of riding (2up) on my wee 05, our total weight is about 22 stone. I am looking to upgrade the rear spring or/and the entire shock. Can anyone give me some advice on which to get.

Is a spring enough?
Should I upgrade bth the spring and damper?
What should I do with the front forks?

Any help much appreciated...

Cheers
Rob


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post #2 of 11 Old 12-29-2012, 11:04 AM
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Originally Posted by vstromrob View Post
Hi my partner and I do a lot of riding (2up) on my wee 05, our total weight is about 22 stone. I am looking to upgrade the rear spring or/and the entire shock. Can anyone give me some advice on which to get.

Is a spring enough?
Should I upgrade bth the spring and damper?
What should I do with the front forks?

Any help much appreciated...

Cheers
Rob
You'll be much better off replacing the whole rear shock with a quality aftermarket unit. The stock shock is already short on rebound damping and with a stronger spring on there it gets totally overwhelmed.

Fork spring rates are calculated using just the rider's weight, since the passenger's weight is directly over the rear axle it doesn't load the front. If you weigh in the 12-14 stone range 0.90kg/mm fork springs would be about right.

Rich Desmond
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post #3 of 11 Old 12-29-2012, 11:35 AM Thread Starter
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Thanks richdesmond

Any particular brands that are good? Or ones I should stay away from?

Thanks




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post #4 of 11 Old 12-31-2012, 12:51 PM Thread Starter
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Cheers for advice, any particular brand/make you think are good?


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post #5 of 11 Old 01-02-2013, 04:45 PM Thread Starter
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Nice one thanks for the info, after quite a bit of research I have ordered both progressive 465 rear shock and progressive front forks. Once fitted I will report back on there performance.

Cheers rob


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post #6 of 11 Old 01-22-2013, 05:03 PM
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While I agree with Rich Desmond my situation is similar but my pocket shallow and arms short. I chose to go with an upgraded rear and front springs alone without the full cost of an after market rear set up. Simply plugged the weight numbers and riding style into the local suspension dealer and got the spring that would suit. Also its and easy job that I could do myself.

So the question is, how has it performed? Well, just finished a 2000km ride from Cairns to Brisbane and while the ride is noticibly harder over the bumps, cornering feels the same. Clearly I havent given the set up enough time to prove the wisdom of Rich but we head to South America next month for 2 years riding there, so I'm sure to be in a good position at that point.

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post #7 of 11 Old 01-22-2013, 08:51 PM
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While I agree with Rich Desmond my situation is similar but my pocket shallow and arms short.
I really do love that turn of phrase. :mrgreen:

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I chose to go with an upgraded rear and front springs alone without the full cost of an after market rear set up. Simply plugged the weight numbers and riding style into the local suspension dealer and got the spring that would suit. Also its and easy job that I could do myself.
Front springs alone simply won't give you satisfaction, IMHO.

You tune the rebound damping to the spring rate with your choice of fork oil, but when you do that correctly with the OEM setup you end up with way too much compression damping. To make the front suspension sing you have to modify to get adjustable hi- and low-speed compression damping happening. I went the Racetech Gold valve emulators route and I'm very happy with the result. You have to pull a few things apart and drill a few holes, but it's not hard if you're mechanically inclined.
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post #8 of 11 Old 02-03-2013, 05:58 PM
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Suspension

There are at least two current threads about improving Wee suspension. Good info in both. I have Sonic 90 springs, fork brace, Intiminators, and Progressive rear shock. Cost around $900 by doing my own work. Money well spent.

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post #9 of 11 Old 02-03-2013, 09:32 PM
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There are at least two current threads about improving Wee suspension. Good info in both. I have Sonic 90 springs, fork brace, Intiminators, and Progressive rear shock. Cost around $900 by doing my own work. Money well spent.
I'm set up similarly, Fork brace, Intiminators and .90 Sonic springs, with an Inertia valve rear shock. It's better on the road than my Ohlins-equipped front and rear race-tuned CB919 was. And it was less expensive for the Inertia Valve technology. I know the DL will be better off road!
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post #10 of 11 Old 02-07-2013, 01:58 AM
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I'm getting sonic springs for the front (1.0, and about $80), but don't plan other options yet on that end of the bike. I may go with emulators at some point, but we'll see how the $80 fix works on the front (and play around with oil weights). I replaced the OEM springs with progressive springs from Progressive Suspension (got them really cheap, so figured it was worth trying over OEM springs). Although they are better than OEM, still not loving them - seem to dive a bit under braking and a bit harsh on things like speed bumps and potholes (as the spring rate ramps up, and I don't use full travel). So going to try linear instead of progressive on the front.

On the rear, I'm considering going with a full rebuild and valving by Racetech on my oem shock (about $450), versus buying something aftermarket ($800+).

I've talked to the Racetech tech guy (terry), and figure given their experience with revalving the oem shocks AND making it reserviceable is compelling. Terry figures with one of their rebuilds, you can can 20k miles before needing another versus 5k or so with the OEM. I hear there was a guy with Sasquatch Suspension in Idaho that could do similar things, but he seems to be out of business (although many seemed to have been happy with his work).


I had considered either 1) just gettting a stiffer spring for my current shock, or 2) looking into getting a 2012 Glee shock. But my current shock doesn't seem to have great rebound damping at max (doesn't come up either very slowly or stay down) so think the damping would be overwhelmed with a stiffer spring only, and I can't find the spring rate on the 2012, so am hesitant to get a shock that may or may not need a new spring anyway.

But tomorrow is another day, and I might change my mind...or maybe find a screaming deal on an aftermarket shock in the "for sale" forum. Recently saw an Ohlins that would have been good for my size, but was too late. C'est la vie.


Anyhow, after blathering on for a bit in this post :lol: , I've found in my mtn biking experience (and downhill mtn bikes are not that difference that motorcycles...at least not unlike dirt bikes), it's best to match the quality of the front and rear suspension to get the best performance. If you go cheap on one end, it'll impact the perform of the bike overall. And the tuning of the suspension is the most important thing, without a doubt. Better to have well tuned unsophisticated suspension, then top of the line stuff that hasn't been properly adjusted. Start with the right sag everytime with the correct preload (and spring if you can't get the right sag). Then you can experiment from there going from one extreme to another on the adjustments for preload and compression. Take notes if you really want to dial it in, or go to a suspension specialty shop and pay them for their expertise (local racers can tell you who's good in your area).

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