Concours Owners Group (COG) Forum

Concours Discussion (C10 / ZG1000 / 1000GTR) => Accessories C10 => Topic started by: Con05_NH on April 12, 2009, 08:47:00 pm

Title: Fork Springs - which ones
Post by: Con05_NH on April 12, 2009, 08:47:00 pm
I want to upgrade my front springs to address dive issues but do not want to sacrifice the ride. Which is the better set up? I weigh 160lbs with gear. Progressive springs with 15W oil, new 1.0 sonic springs with 15w or 1.1 sonic with 15w?      
Title: Fork Springs - which ones
Post by: Bill Hookman on April 12, 2009, 09:26:00 pm
Sonic has a spring rate calculator at:    Sonic Springs Rate Calculator (http://www.sonicsprings.com/catalog/calculate_spring_rate.php?osCsid=a3e59464d991b6879fa3cd872e537c27)  
Title: Fork Springs - which ones
Post by: C. Moore on April 13, 2009, 07:29:00 am
I weigh about 150 with gear on and went with the Sonic 1.1's. If you look around I think most here go with the Sonics. They really made my bike stable out on the highway. It's a great, cheap, easy upgrade. You won't be sorry.  '02 Connie  COG # 6662  Dallas, Tx
Title: Fork Springs - which ones
Post by: smithr1 on April 13, 2009, 11:11:00 am
I put progressives with 15w in a few years back.  I even won some 1.1s at a rally and never got around to trying them.  I just had no issue with the way the progressives and 15w was working for me.  I am 180~  ----------------------------------  South Central Area Director  Email scad@cog-online.org  (http://farm3.static.flickr.com/2343/2277636501_61718d569a.jpg?v=0)  <p align="left">My Photos<br (http://www.flickr.com/photos/20211686@N05/)
Title: Fork Springs - which ones
Post by: John Sperger on April 15, 2009, 11:11:00 am
I'm 5'6" @ 175lbs and put a set of Progressive springs on last year with 10w oil.  The only change I would make it put in 15w oil.  Otherwise I love the Progressive springs.    Hope this helps.  John  
Title: Fork Springs - which ones
Post by: Rob_Barrows_NH on April 15, 2009, 01:02:00 pm
mark, i have the progressives, and I live right down the road from you if you would like to see what my bike feels like, let me know  
Title: Fork Springs - which ones
Post by: kwn306 on April 20, 2009, 10:37:00 am
I had Progressive springs in my 03 and tried 10w and 15w oil.  By far the 15w oil was the best.    Here lately the wife and I was getting beat up pretty badly commuting back and forth to work.  She said to fix the bike or else....    Called Murph, I replaced the rear shock with the Fat Bastard Progressive model because we are both on the large side and I use the Concours as a pack mule.  The ride greatly improved but we were still getting beat up pretty bad.    I ordered the 1.2 Sonics, 15w oil and new fork seals from Murph, 3 hrs later it rides better than the wifes Cadillac now.  The wife is now happy, which makes me happy  ;p enough said.  Kurt & Sue Nordstrom  Spotsylvania, VA  COG 6049 & 6049A  VA & WV Assistant Area Directors