The repeatedly tested and recommended progressive-rate springs from Wirth, endorsed by leading motorcycle specialist magazines, are characterized by their improved driving properties and give the rider significantly more direct feedback.

Improved contact with the road significantly enhances feedback and handling. The firmer tuning minimizes dive during braking to a pleasant, minimal range and provides more security during the ride.

• no sponginess
• direct response
• uncomplicated installation with easy-to-understand instructions

Also suitable for the following models, which we have not listed in the configurator:

BEN BENELLI 500 Quattro 1974-1980
BEN BENELLI 650 S TORNADO w. 38mm Marzocchi fork
DUC DUCATI 900 SD DHARMA 1978-1983 (w. 38mm Marzocchi fork)
DUC DUCATI MHR 1000 MIKE HAILWOOD REPLICA 1989
HD HD 35mm SHOWA Narrow Glide
HD HD FX 1200 Super Glide 1971-1979
HD HD K/XL/XLH/XLCH/XLCR 1000/1200/1340 Year 1952-1986
HD HD XLH 1100 SPORTSTER 1986-1987
HON CB 250 N EURO (CB250N) 1978-1983
HON CB 250 T TWIN (CB250T) 1977-1978
HON CB 400 FOUR (CB400F) 1975-1977
HON CB 400 N (CB400N, CB400T) 1977-1984
HON CB 450 N (PC14) 1985
HON CJ 250 (CJ250T) 1977-1978
HON CM 400 T (NC 01) 1980-1983
HON CM 450 E and CM 450 T (PC05) 1982
HON TL 250 (HONDA Code 376) 1975-1980
KAW GPZ 305 (EX305A) 1983-1989
KAW Z 250 (KZ250A) 1979-1982
KAW Z 250 C (KZ250C) 1980-1982
KAW Z 400 B - Z 400 D - Z 400 G (TWIN) (K4/B, K4/D, K4/G) 1976-1979
KAW Z 440 (TWIN) and LTD (KZ440A) 1980-1984
KRE FLORETT RS-GS 1976-1977
LAV LAVERDA 1000 KGS 1982- w. 38mm Marzocchi fork
LAV LAVERDA 1000/1200 1978-1981 w. 38mm Marzocchi fork
LAV LAVERDA 750 GT
LAV LAVERDA 750 w. 35mm Ceriani fork (spring length orig 480mm)
LAV LAVERDA 750 SF (around 1972) w. 35mm Ceriani fork
LAV LAVERDA w. 35mm Ceriani fork (spring length orig 500mm)
MAR Marzocchi 35/38mm fork
MG MG NUOVO FALCONE 1971-1976
MOR MORINI 3 1/2
MZ MZ TS 250 1973-1976
SUZ GS 400 and E and EN (GS400) 1977-1983
SUZ GS 450 E / EU / S / SU (GL51F) 1985-1989
SUZ GSX 250 E (GJ53B) 1982-1983
SUZ GSX 400 E / S (GK53C) 1982-1987
SUZ GSX 400 F KATANA (GS40XF) 1981-1984
SUZ GSX 400/L (GS40X) 1980-1983
SUZ GT 185 (GT185) 1976-1978
SUZ GT 250 (GT250A) 1973-1977
SUZ GT 380 (GT380J-A) 1972-1980
YAM RD 250 LC (4L1) 1980-1983
YAM RD 80 LC2 (30W) 1983-1986
YAM XS 250 (1U5, 3N6) 1977-
YAM XS 360 (1U4) 1977-1979
YAM XS 400 (2A2) 1979-1982
YAM XS 400 (4A3) 1978-1980
YAM XS 400 SE (4G5) 1980-1982
YAM XS 650 (XS2) 1971-1972
ZUN KS 125 SPORT (521-05) 1973-