YSS SUSPENSION Progressive fork spring 743.01.97

YSS Progressive Wire fork springs with a firmer design than stock.

YSS fork springs are made of high quality silicon spring steel. This allows the thickness of the wire to be reduced, which makes the spring more active and thinner, but at the same time effectively prevents twisting of the spring.

To minimize noise and improve oil flow in the fork, the springs are fully polished and ground on the top and bottom.

2 springs are included for a complete fork conversion.
SPRING TYPE: PROGRESSIVE
LENGTH: 545MM
DIAMETER 1: 26.5MM
HARDNESS 1: 5.5 N/MM
HARDNESS 2: 7 N/MM
LEFT AIR CHAMBER: 150 MM
RIGHT AIR CHAMBER: 150 MM
RECOMMENDED VISCOSITY: 10W


APPLICATIONS OF THIS PRODUCT:
According to the data provided by the manufacturer, this article is compatible with the following brands, models and years:
BMW R 100 /7 60 CV, 44 kw 2cil. 247 0323 Bastidores: 6 045 001-6 050 000 1977-1978
BMW R 100 CS 70 CV, 51 kw 2cil. 247 0426 Bastidores: 6 135 001-6 140 000 1980-1984
BMW R 100 llanta de fundición 67 CV, 49 kw 2cil. 247 0425 Bastidores: 6 035 001-6 040 000 1981-1984
BMW R 100 llanta de fundición 67 CV, 49 kw 2cil. 247 0425 Bastidores: 6 400 001-6 405 000 1981-1984
BMW R 100 llanta de radios 67 CV, 49 kw 2cil. 247 0425 Bastidores: 6 035 001-6 040 000 1981-1984
BMW R 100 llanta de radios 67 CV, 49 kw 2cil. 247 0425 Bastidores: 6 400 001-6 405 000 1981-1984
BMW R 100 RS 70 CV, 51 kw 2cil. 247 0325 Bastidores: 6 086 001-6 095 000 1978
BMW R 100 RS 70 CV, 51 kw 2cil. 247 0377 Bastidores: 6 095 001-6 100 000 1979-1980
BMW R 100 RS 70 CV, 51 kw 2cil. 247 0377 Bastidores: 6 223 001-6 224 000 1979-1980
BMW R 100 RS 70 CV, 51 kw 2cil. 247 0427 Bastidores: 6 075 001-6 080 000 1981-1984
BMW R 100 RS 70 CV, 51 kw 2cil. 247 0427 Bastidores: 6 390 001-6 397 000 1981-1984
BMW R 100 RS 70 CV, 51 kw 2cil. R100 0306 Bastidores: 6 080 001-6 082 000 1976-1977
BMW R 100 RS 70 CV, 51 kw 2cil. R100 0306 Bastidores: 6 082 501-6 086 000 1976-1977
BMW R 100 RT 70 CV, 51 kw 2cil. 247 0386 Bastidores: 6 115 001-6 117 000 1978
BMW R 100 RT 70 CV, 51 kw 2cil. 247 0386 Bastidores: 6 152 001-6 153 000 1979-1980
BMW R 100 RT 70 CV, 51 kw 2cil. 247 0386 Bastidores: 6 155 001-6 160 000 1979-1980
BMW R 100 RT 70 CV, 51 kw 2cil. 247 0386 Bastidores: 6 168 001-6 170 000 1979-1980
BMW R 100 RT 70 CV, 51 kw 2cil. 247 0446 Bastidores: 6 230 001-6 240 000 1981-1984
BMW R 100 T Touren 65 CV, 48 kw 2cil. 247 0375 Bastidores: 6 050 001-6 054 000 1978
BMW R 50 /5 32 CV, 24 kw 2cil. R50/5 0240 Bastidores: 2 900 001-2 903 623 1969-1971
BMW R 50 /5 32 CV, 24 kw 2cil. R50/5 0240 Bastidores: 2 903 624-2 910 000 1972-1973
BMW R 60 /5 40 CV, 29 kw 2cil. R60/5 0250 Bastidores: 2 930 001-2 938 704 1969-1971
BMW R 60 /5 40 CV, 29 kw 2cil. R60/5 0250 Bastidores: 2 938 705-2 950 000 1972-1973
BMW R 60 /6 40 CV, 29 kw 2cil. R60/6 0251 Bastidores: 2 910 001-2 920 000 1973-1974
BMW R 60 /6 40 CV, 29 kw 2cil. R60/6 0255 Bastidores: 2 920 001-2 930 000 1975
BMW R 60 /6 40 CV, 29 kw 2cil. R60/6 0281 Bastidores: 2 960 001-2 970 000 1976
BMW R 60 /7 40 CV, 29 kw 2cil. 247 0321 Bastidores: 6 007 001-6 012 000 1978
BMW R 60 /7 40 CV, 29 kw 2cil. 247 0371 Bastidores: 6 015 001-6 016 000 1979-1980
BMW R 60 /7 40 CV, 29 kw 2cil. R60/7 0301 Bastidores: 6 000 001-6 007 000 1976-1977
BMW R 65 G/S 27 CV, 20 kw 2cil. 247E 0482 Bastidores: 0 056 001 henceforth 056 340 1990
BMW R 65 G/S 27 CV, 20 kw 2cil. 247E 0482 Bastidores: 0 056 341 henceforth 056 675 1991
BMW R 65 G/S 27 CV, 20 kw 2cil. 247E 0482 Bastidores: 0 056 676 henceforth 056 727 1992
BMW R 65 G/S 27 CV, 20 kw 2cil. 247E 0482 Bastidores: 6 125 001-6 125 389 1987
BMW R 65 G/S 27 CV, 20 kw 2cil. 247E 0482 Bastidores: 6 125 390-6 125 525 1988
BMW R 65 G/S 27 CV, 20 kw 2cil. 247E 0482 Bastidores: 6 125 526-6 125 907 1989
BMW R 65 G/S 27 CV, 20 kw 2cil. 247E 0482 Bastidores: 6 125 908-6 126 000 1990
BMW R 75 /5 50 CV, 37 kw 2cil. R75/5 0260 Bastidores: 2 970 001-2 982 737 1969-1971
BMW R 75 /5 50 CV, 37 kw 2cil. R75/5 0260 Bastidores: 2 982 738-3 000 000 1972-1973
BMW R 75 /5 50 CV, 37 kw 2cil. R75/5 0260 Bastidores: 4 000 001-4 010 000 1972-1973
BMW R 75 /6 50 CV, 37 kw 2cil. R75/6 0261 Bastidores: 4 010 001-4 020 000 1973-1974
BMW R 75 /6 50 CV, 37 kw 2cil. R75/6 0265 Bastidores: 4 020 001-4 030 000 1975
BMW R 75 /6 50 CV, 37 kw 2cil. R75/6 0282 Bastidores: 4 030 001-4 040 000 1976
BMW R 75 /7 50 CV, 37 kw 2cil. 247 0326 Bastidores: 6 220 001-6 222 000 1977-1978
BMW R 75 /7 50 CV, 37 kw 2cil. 247 0372 Bastidores: 6 222 001-6 223 000 1979
BMW R 75 /7 50 CV, 37 kw 2cil. R75/7 0302 Bastidores: 6 020 001-6 025 000 1976
BMW R 80 /7N 50 CV, 37 kw 2cil. 247 0327 Bastidores: 6 200 001-6 205 000 1977-1978
BMW R 80 /7N 50 CV, 37 kw 2cil. 247 0373 Bastidores: 6 205 001-6 207 000 1979-1980
BMW R 80 /7S 55 CV, 40 kw 2cil. 247 0322 Bastidores: 6 025 001-6 030 000 1977-1978
BMW R 80 /7S 55 CV, 40 kw 2cil. 247 0374 Bastidores: 6 030 001-6 034 000 1979-1980
BMW R 80 G/S monolever 50 CV, 37 kw 2cil. 247 0346 Bastidores: 6 250 001-6 251 498 1980
BMW R 80 G/S monolever 50 CV, 37 kw 2cil. 247 0346 Bastidores: 6 251 499-6 255 878 1981
BMW R 80 G/S monolever 50 CV, 37 kw 2cil. 247 0346 Bastidores: 6 255 879-6 258 245 1982
BMW R 80 G/S monolever 50 CV, 37 kw 2cil. 247 0346 Bastidores: 6 258 246-6 281 211 1983
BMW R 80 G/S monolever 50 CV, 37 kw 2cil. 247 0346 Bastidores: 6 281 212-6 283 356 1984
BMW R 80 G/S monolever 50 CV, 37 kw 2cil. 247 0346 Bastidores: 6 283 357-6 286 766 1985
BMW R 80 G/S monolever 50 CV, 37 kw 2cil. 247 0346 Bastidores: 6 286 767-6 291 005 1986
BMW R 80 G/S monolever 50 CV, 37 kw 2cil. 247 0346 Bastidores: 6 291 006-6 292 522 1987
BMW R 80 G/S PD Paris Dakar monolever 50 CV, 37 kw 2cil. 247 0346 Bastidores: --- 1984-1987
BMW R 80 RT 50 CV, 37 kw 2cil. 247 0444 Bastidores: 6 420 001-6 425 000 1982-1984
BMW R 90 /6 60 CV, 44 kw 2cil. R90/6 0271 Bastidores: 4 040 001-4 050 000 1973-1974
BMW R 90 /6 60 CV, 44 kw 2cil. R90/6 0275 Bastidores: 4 050 001-4 060 000 1975
BMW R 90 /6 60 CV, 44 kw 2cil. R90/6 0283 Bastidores: 4 060 001-4 070 000 1976
BMW R 90 S 67 CV, 49 kw 2cil. R90/S 0272 Bastidores: 4 070 001-4 080 000 1973-1974
BMW R 90 S 67 CV, 49 kw 2cil. R90/S 0276 Bastidores: 4 080 001-4 090 000 1975
BMW R 90 S 67 CV, 49 kw 2cil. R90/S 0284 Bastidores: 4 090 001-4 100 000 1976