Need Assistance?
Legendary Service... Ask Your Friends - Since 1969
800.969.7501
Over 160K Powersport Items - In-Stock and ready to ship today! View tires, apparel, helmets, exhaust and more!

Progressive Suspension Fork Springs - 40/65 Spring Rate (lbs/in) - 11-1145

  • Part #:
    58977
  • Manufacturer Part #:
    11-1145

MSRP Price: $97.00

Our Price: $87.30

You Save:
$9.70 (10%)
1 on Hand

Overview of Progressive Suspension Fork Springs - 40/65 Spring Rate (lbs/in) - 11-1145

  • Improved overall performance under all conditions
  • Soft initial resistance for a smooth ride under cruising conditions - progressively wound design combats bottoming in harsh conditions by increasing resistance as spring compresses
  • Stops front end droop and diving during braking while improving cornering stability
  • Sold in pairs

Specs for Progressive Suspension Fork Springs - 40/65 Spring Rate (lbs/in) - 11-1145

Type Spring
Units Pair
Weight 3.75 lbs

Specs for Progressive Suspension Fork Springs - 40/65 Spring Rate (lbs/in) - 11-1145

Type Spring
Units Pair
Weight 3.75 lbs

Fitment for Progressive Suspension Fork Springs - 40/65 Spring Rate (lbs/in) - 11-1145

See if this part fits your ride

Part 58977 fits the following machines

Honda
  • 1991 Honda CBR1000F
  • 1990 Honda CBR1000F
  • 1993 Honda CBR600F2
  • 1992 Honda CBR600F2
  • 1991 Honda CBR600F2
  • 1998 Honda PC800 Pacific Coast
  • 1997 Honda PC800 Pacific Coast
  • 1996 Honda PC800 Pacific Coast
  • 1995 Honda PC800 Pacific Coast
  • 1994 Honda PC800 Pacific Coast
  • 1990 Honda PC800 Pacific Coast
  • 1989 Honda PC800 Pacific Coast
  • 1991 Honda VFR750F
  • 1990 Honda VFR750F
Kawasaki
  • 2001 Kawasaki VN1500G Vulcan Nomad
  • 2000 Kawasaki VN1500G Vulcan Nomad
  • 1999 Kawasaki VN1500G Vulcan Nomad
  • 2000 Kawasaki VN1500J Vulcan Drifter
  • 1999 Kawasaki VN1500J Vulcan Drifter
  • 2001 Kawasaki VN1500L Vulcan Nomad Fi
  • 2000 Kawasaki VN1500L Vulcan Nomad Fi
  • 2002 Kawasaki VN1500R Vulcan Drifter
  • 2001 Kawasaki VN1500R Vulcan Drifter
  • 1990 Kawasaki ZX1000B Ninja ZX-10
  • 1989 Kawasaki ZX1000B Ninja ZX-10
  • 1988 Kawasaki ZX1000B Ninja ZX-10
Suzuki
  • 2006 Suzuki GSX600F Katana
  • 2005 Suzuki GSX600F Katana
  • 2004 Suzuki GSX600F Katana
  • 2003 Suzuki GSX600F Katana
  • 2002 Suzuki GSX600F Katana
  • 2001 Suzuki GSX600F Katana
  • 2000 Suzuki GSX600F Katana
  • 1999 Suzuki GSX600F Katana
  • 1998 Suzuki GSX600F Katana
  • 1997 Suzuki GSX600F Katana
  • 1996 Suzuki GSX600F Katana
  • 1995 Suzuki GSX600F Katana
  • 1994 Suzuki GSX600F Katana
  • 1993 Suzuki GSX600F Katana
  • 1992 Suzuki GSX600F Katana
  • 1991 Suzuki GSX600F Katana
  • 1990 Suzuki GSX600F Katana
  • 1989 Suzuki GSX600F Katana
  • 1988 Suzuki GSX600F Katana
  • 2006 Suzuki GSX750F Katana
  • 2005 Suzuki GSX750F Katana
  • 2004 Suzuki GSX750F Katana
  • 2003 Suzuki GSX750F Katana
  • 2002 Suzuki GSX750F Katana
  • 2001 Suzuki GSX750F Katana
  • 2000 Suzuki GSX750F Katana
  • 1999 Suzuki GSX750F Katana
  • 1998 Suzuki GSX750F Katana
  • 2005 Suzuki SV650
  • 2004 Suzuki SV650
  • 2003 Suzuki SV650
  • 2002 Suzuki SV650
  • 2001 Suzuki SV650
  • 2000 Suzuki SV650
  • 1999 Suzuki SV650
4.8 / 5.0
24 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
20
4
0
0
0
Fit
4.8 / 5
Quality
4.9 / 5
Style
4.8 / 5
Value
4.8 / 5
Fit
4 / 5
Quality
5 / 5
Style
4 / 5
Value
5 / 5
Progressive Fork Springs (11-1126)
I have used these fork springs on a few of my bikes and would use them again. The benefit is most noticeable when rebuilding the forks of an older bike with a soft or mushy front end. The springs are very easy to install, simply drop in place of the original. My particular applications required no additional shimming or spacing. Now, whenever I need to replace an old leaking set of fork seals I replace the springs as well. The cost is very reasonable and varies from around $65-$100 depending on which bike model application you are buying. If you are planning on rebuilding your forks, in addition to replacing the seals and fork oil, I would recommend dropping a fresh set of these springs in as well. The difference will be noticed not only under extreme conditions such as hard braking or cornering but also in the overall feel of the bike during every day cruising.
January 23, 2010
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
Exactly..
Progressive springs were recommended by a friend and the the springs I purchased through Dennis Kirk were in every way, perfect. Delivered fast, a perfect fit and the performance far exceeded my expectation!
Dennis Kirk proved they have the highest quality parts at the right price and I will turn to Dennis Kirk first for all mi cycle parts..Thanks for the great service!!
October 22, 2009
Fit
3 / 5
Quality
4 / 5
Value
4 / 5
Progressive Improvement
The bike was in rehab, it had been abused. I nursed it back to health. Drive shaft, rear diff, fuel pump. You know, the usual results of a rock-n-roll lifestyle will wear you down over time. This beemer was over twenty years old, yet was calling for the open road . . .

But once on the road again she handled like a sloppy drunk. What can I say, she'd been ridden hard and put up wet. New sneakers and new suspension were just what the doctor ordered.

There were aftermarket progressively wound springs in there already, but after twenty years they were collapsed. I slipped them out and put these new ones in and let's just say it was back to rock-n-roll again.

The bike handles so much better, and this isn't the first pair of Progressive Suspension's springs I purchased. It's probably the fifth or sixth pair as over the years I have found their products to be the answer to my motorcycle handling woes, whether on the street or on the dirt.

Just get 'em. You won't be dissappointed.
October 21, 2009
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
excellent upgrade
our v-star 650 was long overdue for a fork oil change &
it's handling was becoming too soft up front. these new
springs work much better than stock with better control
& still a comfortable ride. be sure to follow the instructions
because the fork oil level setting is different with the new
springs & spacers.
July 12, 2011
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
Progressive Fork Springs
I used these springs in my stripped down 1982 Honda
Goldwing. Ride height was just right and spring rate
feels very good!!! Not using any air pressure.
August 22, 2011
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
better riding
bought the gold wing springs for my vtx 1800,so that i wouldnt be hitting bottom of the shocks, I installed them during the winter, just got a chance to ride today and so far [ 30 miles] i have decided that i will NOT be returning to the stock springs,
March 19, 2010
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
VTX1300 Great improvement!
With the stock springs I would get a slight wobble when no handed between 30 and 40 mph. Installing these springs complete removed this problem! When pulling my trailer, the wobble was severe,even with my hands on. That also has gone away. Just got back from a 600 mile trip, and I am extatic with these springs!
April 30, 2013
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
Refreshed Front End
Replaced mushy springs on 84' V65 Magna. Springs are a great addition to older bike. Feel good and much more stable ride. No issues with install. Used new PVC for each spacer. Instructions were clear and had all required details. Very Nice.
March 12, 2013
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
good investment
These springs made a world of difference in the ride and handling. Well worth the time and money, installation wasn't bad, as I had the front end apart for seals anyway.
April 18, 2011
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
Excelent product
Progressive spring sure helped the front end of this bike. Alot better ride and better handling
February 5, 2010
Start typing your question and we'll check if it was already asked and answered. Learn More
No questions have been asked about this item. Be the first!

Instructions and Manuals for Progressive Suspension Fork Springs - 40/65 Spring Rate (lbs/in) - 11-1145

You May Also Be Interested In