Progressive Suspension Fork Springs
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Progressive Suspension Progressive Rate Fork Springs for Honda, Kawasaki, Suzuki & Yamaha Models

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JC Motors Part # 11-1106
Progressive Suspension Progressive Rate Fork Spring Kit for Kawasaki GPZ 550 Models

Progressive Suspension Progressive Rate Fork Springs for Honda, Kawasaki, Suzuki & Yamaha Models

  • Item fits 1974-1978 Honda CB550F & CB550K, 1976-1978 Honda CB750A Hondamatic, 1976-1982 Honda CB750A, 1980-1982 Honda CB750C Custom.
  • Fits 1976-1980 Kawasaki KZ750 Twin, 1977-1983 Kawasaki KZ650, 1978-1979 Kawasaki KZ650SR, 1980-1983 Kawasaki KZ550 LTD, 1980-1983 Kawasaki KZ550 Spectre, 1980-1983 Kawasaki KZ750E, 1980-1983 Kawasaki KZ750H, 1982-1983 Kawasaki CSR650, 1984-1986 Kawasaki 550 GPZ.
  • Fits 1977-1978 Suzuki GS550, 1978-1980 Suzuki GS1000, 1979-1980 Suzuki GS550, 1981-1982 Suzuki GS1000, 1981-1983 Suzuki GS650G (Shaft), 1981-1983 Suzuki GS650GL, 1982-1984 Suzuki GS1100G.
  • Fits 1980-1983 Yamaha XJ650 Maxim, 1982 Yamaha XJ650 Seca, and 1982-1983 Yamaha XJ650 Seca Turbo models.
  • The 'Original' Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones.
  • Spring rates have been chosen to reduce front end "dive" during braking, yet still provide excellent ride comfort.
  • Better yet, Progressive warranties their fork springs for life!
  • Progressive Rate Fork Springs have several advantages over straight rate springs.
  • A Progressive Rate Spring has the advantage of a rising rate of resistance to compression.
  • The benefit of this is that the spring can be soft enough at the start of the travel to offer a "plush" ride, yet be firm enough at the end of the travel to soak up the big bumps.
JC Motors Part# 11-1106

Progressive Suspension Manufacturer Warranty

  • WARRANTY

Warranty

With the Progressive Suspension Product Service and Warranty Program, we'll have your claim repaired or replaced and on its way back to you within a few days in most cases, so we can get you back on the road or in the dirt before you start to show withdrawal symptoms. Give our techs a call and get a RETURN MERCHANDISE AUTHORIZATION number BEFORE you send it back! Click here for the details!


Warranty -
warranty@progressivesuspension.com
(For Warranty questions only)

Warranty / Techline -
714.523.8700 714.523.8700

Fax -
714.523.3220

Progressive Suspension, Inc.
6911 Marlin Circle
La Palma, CA 90623

* SHOCK GUIDELINES
* FORK SPRING GUIDELINES
* WARRANTY PROCEDURE (POWERSPORTS)
* WARRANTY PROCEDURE (BICYCLE)
* SHOCK ABSORBER LIMITED WARRANTY
* SHOCK SPRINGS & FORK SPRINGS LIFETIME WARRANTY
Progressive Suspension Progressive Rate Fork Springs for Honda, Kawasaki, Suzuki & Yamaha Models fits the following vehicle(s):
  • 1975 HONDA CB550F
  • 1976 HONDA CB550F
  • 1977 HONDA CB550F
  • 1977 HONDA CB550K
  • 1978 HONDA CB550K
  • 1975 HONDA CB550K1
  • 1976 HONDA CB750A AUTOMATIC
  • 1977 HONDA CB750A HONDAMATIC
  • 1978 HONDA CB750A HONDAMATIC
  • 1980 HONDA CB750C CUSTOM
  • 1981 HONDA CB750C CUSTOM
  • 1982 HONDA CB750C CUSTOM
  • 1981 KAWASAKI KZ550-C2 (LTD)
  • 1982 KAWASAKI KZ550C3 LTD
  • 1983 KAWASAKI KZ550C4 LTD
  • 1983 KAWASAKI KZ550F1 SPECTRE
  • 1983 KAWASAKI KZ550M1 LTD SHAFT
  • 1977 KAWASAKI KZ650-B1
  • 1978 KAWASAKI KZ650-B2
  • 1979 KAWASAKI KZ650-B3 (STD)
  • 1977 KAWASAKI KZ650C1
  • 1978 KAWASAKI KZ650-C2
  • 1979 KAWASAKI KZ650-C3 (CSTM)
  • 1978 KAWASAKI KZ650-D1
  • 1979 KAWASAKI KZ650-D2 (SR)
  • 1980 KAWASAKI KZ650-E1 LTD
  • 1980 KAWASAKI KZ650-F1
  • 1981 KAWASAKI KZ650-H1
  • 1982 KAWASAKI KZ650H2 CSR
  • 1983 KAWASAKI KZ650H3 CSR
  • 1976 KAWASAKI KZ750-B1
  • 1977 KAWASAKI KZ750-B2
  • 1978 KAWASAKI KZ750-B3
  • 1979 KAWASAKI KZ750-B4
  • 1980 KAWASAKI KZ750-E1
  • 1981 KAWASAKI KZ750-E2 (STD)
  • 1982 KAWASAKI KZ750E3 SPORTS
  • 1980 KAWASAKI KZ750-H1 LTD
  • 1981 KAWASAKI KZ750-H2 (LTD)
  • 1982 KAWASAKI KZ750H3 LTD
  • 1983 KAWASAKI KZ750H4 LTD
  • 1984 KAWASAKI ZX550A1 GPZ
  • 1985 KAWASAKI ZX550A2 GPZ
  • 1978 SUZUKI GS1000C
  • 1978 SUZUKI GS1000EC
  • 1979 SUZUKI GS1000EN
  • 1980 SUZUKI GS1000ET
  • 1980 SUZUKI GS1000GLT
  • 1981 SUZUKI GS1000GLX
  • 1980 SUZUKI GS1000GT
  • 1981 SUZUKI GS1000GX
  • 1982 SUZUKI GS1000GZ
  • 1979 SUZUKI GS1000LN
  • 1979 SUZUKI GS1000N
  • 1979 SUZUKI GS1000SN
  • 1980 SUZUKI GS1000ST
  • 1982 SUZUKI GS1000SZ CAFE
  • 1983 SUZUKI GS1100GD
  • 1982 SUZUKI GS1100GZ
  • 1977 SUZUKI GS550B
  • 1978 SUZUKI GS550C
  • 1978 SUZUKI GS550EC
  • 1979 SUZUKI GS550EN
  • 1980 SUZUKI GS550ET
  • 1979 SUZUKI GS550LN
  • 1980 SUZUKI GS550LT
  • 1979 SUZUKI GS550N
  • 1983 SUZUKI GS650GD
  • 1983 SUZUKI GS650GLD
  • 1981 SUZUKI GS650GLX
  • 1982 SUZUKI GS650GLZ
  • 1981 SUZUKI GS650GX
  • 1982 SUZUKI GS650GZ
  • 1980 YAMAHA XJ650G MAXIM II
  • 1981 YAMAHA XJ650H MAXIM
  • 1982 YAMAHA XJ650J MAXIM
  • 1983 YAMAHA XJ650K MAXIM
  • 1981 YAMAHA XJ650LH MIDNIGHT MAXIM
  • 1982 YAMAHA XJ650LJ SECA TURBO
  • 1983 YAMAHA XJ650LK SECA TURBO
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