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What Springs and Oil Weight did you choose?

  • .85, less than or equal to 10wt

    Votes: 2 5.0%
  • .85, greater than or equal to 12.5wt

    Votes: 2 5.0%
  • .90, less than or equal to 10wt

    Votes: 2 5.0%
  • .90, greater than or equal to 12.5wt

    Votes: 5 12.5%
  • .95, less than or equal to 10wt

    Votes: 1 2.5%
  • .95, greater than or equal to 12.5wt

    Votes: 13 32.5%
  • 1.0, less than or equal to 10wt

    Votes: 6 15.0%
  • 1.0, greater than or equal to 12.5wt

    Votes: 4 10.0%
  • 1.1, less than or equal to 10wt

    Votes: 1 2.5%
  • 1.1, greater than or equal to 12.5wt

    Votes: 4 10.0%

  • Total voters
    40
1 - 14 of 14 Posts

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$tromTrooper
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1,741 Posts
Discussion Starter #1 (Edited)
Inquiring minds would like to know.....

Please respond to the poll, but I think it would be very informative to find out specifics and commments about your Sonic Spring Experience. So, besides voting, please answer the following questions if you have a done the Sonic Spring job.

Bike: (650 or 1000)
Wet Weight + Rider + Gear: (lbs)
Springs Installed: (85's, 90's, 95's, etc.)
Oil Weight: (10wt, 12.5wt, 15wt, etc.)
Type of Riding: (Racing/Hard Twisties, City/Commute Riding, 10% dirt, 40% rough dirt)

Comments:



Thanks!
 

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$tromTrooper
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1,741 Posts
Discussion Starter #2 (Edited)
I'll be the first to reply........

Bike: DL650
Wet Weight + Rider + Gear: 475 + 275 + 100 = 850lbs
Springs Installed: .95
Oil Weight: Undecided: 11.6wt (2 pints of 10wt and 1 pint of 15wt, mixed)
Type of Riding: 80% Pavement (Town, Twisties, Mountain) and 20% Fire Roads and Rough Mountain Jeep Trails

Comments: The jury is out, as I will be installing tomorrow.

Road them today on a MotoX Track (yeah I took it easy), but WOW.....WOW.....what a difference. I can't wait to take this bike back up to the San Juans!!!!
 

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Premium Member
Joined
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304 Posts
08 650
springs are the .95's with a combo of 15w and 10w oil per maker's recommendation.

weight 425 (bike) + 175 (me) + 30 (gear)

zero off road riding, just ride for fun wherever I feel like exploring

results are terrific stability and solidness, like comparing an old Buick to a German road car. Tendency to ride faster because it's easier and under control, but I don't ride stupid (I hope). I stated elsewhere on this forum the night I got them installed that I was riding home from having them put in, and realized I was going 90 mph, which I never do, because the bike felt like it was doing 60 or so - just great!

bottom line for me is it's a great mod for the bike
 

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Premium Member
Joined
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8,025 Posts
I'm happy with the results I got from the calculator on the website. 10w oil. 1.0 kg/mm

I used the calculator a few times with different input to see what the differences were.

After two years and 33,000 miles on the Sonic springs, I haven't met a situation where I wished I had made a different choice.

Oh, if you're gonna load the bike up towards the GVW, you really ought to beef up the rear spring and/or shock too.
 

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FORUM GODFATHER.....R.I.P. PAT
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38,048 Posts
I tried 15wt with .9kg springs and it was too heavy. I might have gone to 10wt this winter but I went with a rebuild using Traxxion cartridges instead. It's making me itch that it may be months before I can test the new suspension.
 

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Off Wee-ing in the woods
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676 Posts
Bike: DL650
Wet Weight + Rider + Gear: 475 + 340 + 50 = 865lbs
Springs Installed: 1.1
Oil Weight: 15wt
Type of Riding: 80% Pavement and 20% off pavement
 

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Registered
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181 Posts
'04 dl650

180 pounds loaded with gear, solo rider, 100% roads, aggressive rider, sometimes tour with 3 Givi cases.

.90 springs, 15 wt Motul fully synthetic fork oil, Elka triple adjustable rear shock, pure magic!
 

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Registered
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39 Posts
Bike: 650
Wet Weight + Rider + Gear: 450 + 210 + 20
Springs Installed: 1.0
Oil Weight: approx. 12.5wt
Type of Riding: 15% Racing/Hard Twisties, 85% City/Commute Riding

Thinking of switching to 10wt during next service. Still a vast improvement over stock.
 

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Premium Member
Joined
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719 Posts
Huh?

I tried 15wt with .9kg springs and it was too heavy. I might have gone to 10wt this winter but I went with a rebuild using Traxxion cartridges instead. It's making me itch that it may be months before I can test the new suspension.
You can do that on a 650? How much moolah? I can't wait for the review!
 

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FORUM GODFATHER.....R.I.P. PAT
Joined
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38,048 Posts
New cartridges, springs, oil, bushings, seals, shock sock and fork cap adjusters plus labor for the rebuild and return shipping (the only way they do things) was $1395. I gathered they can really handle just about any fork. Each unit is custom made to fit. With an Elka shock added too, there ought to be a big difference. The original cost of the bike is still more than the accessories, but I'm closing the gap. If only I wasn't so happy with the stock exhaust. :mrgreen:
 

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Living the Stereotype
Joined
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11,543 Posts
Bike: 650
Wet Weight + Rider + Gear: 450 + 210 + 20
Springs Installed: 1.0
Oil Weight: approx. 12.5wt
Type of Riding: 15% Racing/Hard Twisties, 85% City/Commute Riding

Thinking of switching to 10wt during next service. Still a vast improvement over stock.
This is just like mine, except the 15% would be "alternative surfaces".

Ditto on the 10wt oil.
 

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Premium Member
Joined
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935 Posts
.95 springs
12.5 wt oil.

First test ride today. What a difference!!
Much firmer, WAY less dive when hard on the brakes, more planted in corners. Should have done this a long time ago!! :cool::cool::cool::cool:
 

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Registered
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499 Posts
Going to 1.0 Sonics with 10 wt. oil. Got the oil today, the springs are on the way.

Sonic says no way would I want heavier than 10 wt for normal riding at my weight of 265# plus gear.

What made some of you guys go to a heavier oil?
 
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