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Discussion Starter · #1 ·
There used to be a thread where people could post their height and weight along with their suspension settings and comments, but I think it disappeared. With all the recent suspension talk, I thought we should revive it as it may be useful. So, if you want, post:

1. Body (Height, weight)
2. Suspension settings (Including mods)
3. Comments (For example, for street, for track, set up by Dave Moss, etc.)
 

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OK. Here are the settings I used on my 2007 675 for aggressive weekend curve riding, yet OK for daily commuting...

I rate the settings below as a 7.5 - 8.0 out of 10.

Weight 225 with gear
Height 5'11"
Front Sag 26mm
Front Preload 4 lines showing (barely)
Front Compression 7 out
Front Rebound 5 out

Rear Sag 18mm
Rear Preload 3 threads showing
Rear Compression 7 out
Rear Rebound 2 out

Fork height 4mm above triple clamp


Pirelli Corsa III's
Front cold pressure 32
Rear Cold Pressure 34
 

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Discussion Starter · #3 ·
Sport Rider Magazine recommends these settings from the July, 2006 issue:

Front Preload: 5 lines showing
Front Compression: 9 clicks out
Front Rebound: 6 clicks out

Rear Preload 20mm of thread showing from top of threads to top of spring
Rear Compression: 8 clicks out
Rear Rebound: 3 clicks out
 

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There used to be a thread where people could post their height and weight along with their suspension settings and comments, but I think it disappeared. With all the recent suspension talk, I thought we should revive it as it may be useful. So, if you want, post:

1. Body (Height, weight)
2. Suspension settings (Including mods)
3. Comments (For example, for street, for track, set up by Dave Moss, etc.)
How about we add a "rating" out of 10 or similar? In other words, if you think your settings for your weight rock, give it a 9.5 out of 10. If you are NOT happy with your settings give it a 5 or 6. If they are OK, but could do with improvement, give it a 7 or 8. Also, if you use someone's settings that they posted here, rate the NEW settings, so we can see if there are specific settings for weight that seem to be universally approved of.
 

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I'll contribute once i get the numbers in front of me.
2007 675, stock suspension components, for aggressive canyon carving + the occasional work commute...

I haven't got a chance to ride too much with them. My bike is in pieces right now. But once I had the suspension tuned to my weight + riding style, the bike felt a lot more planted, neutral, and the rear rebound was significantly less violent as the stock settings.

Weight 205, Maybe 215 with gear
Height 6'3"
Front Sag 35 mm
Front Preload X lines showing
Front Compression 14 out
Front Rebound 5 out

Rear Sag 25 mm
Rear Preload X threads showing
Rear Compression 8 out
Rear Rebound 4 out

Fork height - stock (4mm?)


OEM Tires
Front cold pressure 36
Rear Cold Pressure 36

Tuned by Phil Douglass over at Tri Valley Moto.


P.S. This is a great idea.
 

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Weight 205, Maybe 215 with gear
Height 6'
Front Sag 35 mm
Front Preload 5 lines showing
Front Compression .75 out
Front Rebound 4 out

Rear Sag 37 mm
Rear Preload 7 threads showing
Rear Compression 4 out
Rear Rebound 1 out

Fork height - stock

OEM Tires
Front cold pressure 34
Rear Cold Pressure 32
NOTE* This is the stock suspension, 2 years old with 4k mileage.
http://www.whatnextmotorcycletraining.com/index.html
 

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Right... Here are my settings so far for the 2009 Tornado Red. CHANGES MADE, AS THE SUSPENSION IS FULLY BROKEN IN NOW>>>>

I rate these settings a solid 9.75 out of 10 !!!:notworthy: This is for my combination of riding to work and Weekend corner carving. For track work, I would go a bit stiffer.

Weight 225 with gear
Height 5'11"
Front Sag 31mm
Front Preload 4 lines showing
Front Compression 8 out from full in
Front HS Compression 4 turns out from full in
Front Rebound 7 out

Rear Sag 24mm
Rear Preload 4 threads showing (stock)
Rear Compression 8 out from full in
Rear HS Compression 4 turns out from full in
Rear Rebound 5 out (was 7 out)

Fork height STOCK

Pirelli Corsa Pro SP's
Front cold pressure 32
Rear Cold Pressure 34
 

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Similar settings to those used by Red 675 (as set up by Dave Moss - Red 675's bike, not mine)

San Francisco Bay Area Suspension Tuning - Triumph675.Net Forums

Height: 5ft 9in
Weight: 170 lbs (without gear)

Shock; - Racetech Spring 9.8 kg/mm (550lb spring)
Sag: 35mm
Compression: 9 clicks out
Rebound: 4 clicks out

Forks; - fork tops set flush with top plate
Preload: 4-1/2 lines showing
Compression: 9 clicks out
Rebound: 3 clicks out

Tyres/Tires;
Front: Diablo Rosso 120/70 at 36 psi (street)
Rear: Diablo Rosso 180/55 at 38 psi (street)

Dropped the forks through the yokes so the tops were flush with the top plate (increase trail). Two reasons for this;
1. To improve high speed stability.
2. To slow the turn in of the bike just a tad. I found it too flighty as standard.

Replaced the rear spring with a Racetech 9.8 Kg/mm unit through 303cycle.com (excellent service & good communication - thanks Wade)

RACE TECH Rear Shock Spring for D675 - *OPEN* - Triumph675.Net Forums

Didn't go with Racetech's calculators recommendation (Street at 7.75 kg/mm - Race at 8.14 kg/mm) based on others comments. Glad I did ignore the calculators output now. The 9.8kg/mm spring really suits my taste. Would imagine the 9.4kg/mm unit would also work pretty well with my weight. As it is, to get 35mm of sag with the 9.8kg/mm spring, I have about 8 threads showing.

So how does it feel. Well, it's a fkn different bike now. It has always gripped really well, but in standard trim (and with reduced preload on the original rear spring) it never felt right. In fact I could never really feel what the rear or the front were doing, despite trying numerous settings.

Changing the rear spring has resulted in a vast improvement in the feel on both the front & rear. The Diablo Rosso's have slowed the rate of turn in, which isn't altogether a bad thing. Before, the bike would drop in, with me having to pick it up on the throttle (in first gear, with fuel injection - really sucks). Now, I can control the rate of drop in. It's also reduced the flighty nature of the front when powering out of a corner.

All in all, Im delighted with the results of the changes. Have a really solid base line now. Just need a track day or too to fine tune.
 

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Tyres/Tires;
Front: Diablo Rosso 120/70 at 36 psi (street)
Rear: Diablo Rosso 180/55 at 38 psi (street)
Are those Pirelli recommend? I'm still using 34 and 36.

I just weighed myself with gear (170lbs) and will be setting the stock suspension tomorrow. I tried searching but no luck finding setting for my weight with gear. Please help!
 

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Well having now owned the bike for 3 years I finally got round to checking my suspension!! Been on stock since new and has only covered 3500miles.

Many thanks for all the guides on measuring Sag, it was a lot to take in at first but I'm now happy with my settings having done 2 track days in the last month.

Weight is 180lbs with gear on, height 5'10". So with a couple of friends helping here is what I have settled on:

Note :- My understanding was that the front sag range should be 35-48mm and rear sag range 30-35mm (Although as pointed out by Dave moss the progressive spring needs more sag to access all of its travel) dependant on street/track use.

Front Sag (Rider) = 35mm
Preload = 7 lines shown.
Compression = Road 9 clicks out / Track 7 clicks out
Rebound = Road 4 clicks out / Track 3 clicks out

Rear Sag (static) = 15mm
Rear Sag (Rider) = 41mm
Preload = 6 threads visible
Compression = 9 clicks out road and track
Rebound = Road 4 clicks out / Track 3 clicks out

Had an open pitlane trackday recently so really got to experiment. I actually put the rear preload back to stock (4 threads ish), on exit from the hairpin I was constantly running wide, so much so that I almost came off! At that setting though my rider sag was massive. Setting it up as above then heading back out I couldnt believe the difference. I also set the comp and rebound back to stock and did the same thing. Anyways thats it for the now, at least until I get itchy fingers again!
 

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Hey guys, some questions, I have zero knowledge on suspension set up, I did my first track day a few days ago and set up my bike there for like $30. It felt great at the track, but is a nightmare now on the street and canyons, too stiff and bumpy, is there something I can do on my own? Thanks :whistle:
 

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Hey guys, some questions, I have zero knowledge on suspension set up, I did my first track day a few days ago and set up my bike there for like $30. It felt great at the track, but is a nightmare now on the street and canyons, too stiff and bumpy, is there something I can do on my own? Thanks :whistle:
The trade-off between track settings and street, is always a difficult one. Track settings are too stiff for regular street riding. My suggestion is first to write down all your track settings and keep them somewhere safe, then set the Bike up for the street with the softer Sag settings that you will need to soak up the bumps and lumps of everyday riding and once it is set up for the street, write those settings down as well. You can then go from street to race and back with a few turns of a screwdriver and a wrench in about 5 minutes.

Street Sag should be 25mm - 30mm in the front (maybe a bit more if the streets you ride are really bad) and 15mm - 25mm in rear. Depending on your weight and what year your Bike is, you may not be able to get quite enough Sag in the rear, as the spring is VERY stiff. Remember, you will also have to set your damping front and rear to suit your Sag rates... The damping will be different for street and race.
 

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Has taken a while to get to these settings but I find them good for moderately fast road pace and still commutable.
63Kgs/140lbs 5'4"

Stock forks (0.9Kg/mm)
Front preload fully out
Front rider sag 32mm
Front static sag 20mm
Front compression 9 clicks out
Front rebound 6 clicks out

Elka 2-way shock (9.8Kg/mm, 550lbs/in)
Rear rider sag 30mm
Rear static sag 10mm
Rear compression 22 clicks out
Rear rebound 26 clicks out
 

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Well having now owned the bike for 3 years I finally got round to checking my suspension!! Been on stock since new and has only covered 3500miles.

Many thanks for all the guides on measuring Sag, it was a lot to take in at first but I'm now happy with my settings having done 2 track days in the last month.

Weight is 175lbs with gear on, height 5'10". So with a couple of friends helping here is what I have settled on:

Note :- My understanding was that the front sag range should be 35-48mm and rear sag range 25-35mm dependant on street/track use.

Front Sag (Rider) = 35mm
Preload = Fully wound out i.e. 8 lines shown. Was worried that I wouldnt be able to get around 35mm at first!
Compression = 9 clicks out
Rebound = 4 clicks out

Rear Sag (static) = 13mm
Rear Sag (Rider) = 35mm
Preload = 10mm of thread showing / 7 threads visible.
Compression = 9 clicks out
Rebound = 4 clicks out

Definately happy with how she handles now. Was worried at first when I measured the front sag on stock settings. I've achieved 35mm sag but the preload adjuster is at max out now. No such problems with the rear.
Going to try your setting tomorrow.
 

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I don't know if these pressure settings are recommended by Pirelli (I have never gone by tyre manufacturer's recommendations anyway), but they work well for me. They seem to give me slightly more directional precision over the OEM pressures of 34 psi front & 36 psi rear. But then again, the OEM Pirellis have a slightly different x-sectional profile (more triangular than the Rosso's).

I would suggest trying a variety of different pressures until you find something that works for you.

Also, the heat down here in Houston, Tx is pretty extreme in the summer, so maybe the additional 2 psi (more pressure = less tyre flex = less heat) helps ballance the effect of the ambient temperature. Should improve the miles per tyre figure too.
 

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Well having now owned the bike for 3 years I finally got round to checking my suspension!! Been on stock since new and has only covered 3500miles.

Many thanks for all the guides on measuring Sag, it was a lot to take in at first but I'm now happy with my settings having done 2 track days in the last month.

Weight is 175lbs with gear on, height 5'10". So with a couple of friends helping here is what I have settled on:

Note :- My understanding was that the front sag range should be 35-48mm and rear sag range 25-35mm dependant on street/track use.

Front Sag (Rider) = 35mm
Preload = Fully wound out i.e. 8 lines shown. Was worried that I wouldnt be able to get around 35mm at first!
Compression = 9 clicks out
Rebound = 4 clicks out

Rear Sag (static) = 13mm
Rear Sag (Rider) = 35mm
Preload = 10mm of thread showing / 7 threads visible.
Compression = 9 clicks out
Rebound = 4 clicks out

Definately happy with how she handles now. Was worried at first when I measured the front sag on stock settings. I've achieved 35mm sag but the preload adjuster is at max out now. No such problems with the rear.
Just a thought. Winding the front preload fully out may lead to a slight problem with premature bottoming out of the forks, as there is not as much travel available as you might think.

Check out Dave Moss's assesment of the fork internals

"Dave determined that bottom out on the forks was unusual - 17mm above the axle casting joint with the chrome tube. With some internal modifications, that changed to 5mm above the casting, gaining 12mm more travel."
 

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Just a thought. Winding the front preload fully out may lead to a slight problem with premature bottoming out of the forks, as there is not as much travel available as you might think.

Check out Dave Moss's assesment of the fork internals

"Dave determined that bottom out on the forks was unusual - 17mm above the axle casting joint with the chrome tube. With some internal modifications, that changed to 5mm above the casting, gaining 12mm more travel."
Now thats spooky timing, just read that exact article last night! I've adjusted the front preload back into 6 lines showing. Also I've removed preload from the shock, it's now showing 5 threads only. Again this was after reading his article about the nature of the progressive spring requiring more sag.

Thats all the tweaking I'm doing for now though, I've finally found a place in Scotland that specialises in suspension setup - MPG Performance at the Ducati dealer in Glasgow. Payed a visit today and he was superb (ex Moto GP and BSB crew member/chief!) Got the bike booked in for next week for a full setup. He will determine if it needs resprung for me when I'm there so really looking forward to that.

Oh, love the 'Rab C' Avatar. Lives just down the road from me!!!
 

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Now thats spooky timing, just read that exact article last night! I've adjusted the front preload back into 6 lines showing. Also I've removed preload from the shock, it's now showing 5 threads only. Again this was after reading his article about the nature of the progressive spring requiring more sag.

Thats all the tweaking I'm doing for now though, I've finally found a place in Scotland that specialises in suspension setup - MPG Performance at the Ducati dealer in Glasgow. Payed a visit today and he was superb (ex Moto GP and BSB crew member/chief!) Got the bike booked in for next week for a full setup. He will determine if it needs resprung for me when I'm there so really looking forward to that.

Oh, love the 'Rab C' Avatar. Lives just down the road from me!!!
Jay, I would really recommend changing the rear spring to either a 9.4 kg/mm or 9.8 kg/mm before having the suspension set up. I would guess that finding a setup that works with the stock spring is going to prove tricky. Could well involve reducing the compression and increasing the rebound, which could well result in a pretty shite comprimise. I've switched over to a 9.8 kg/mm and noticed a hugh improvement. Can finally feel what the bike is doing now.
 
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