SPEC
66
Model
RS90RX/RS90GTX/RS90GTAX/RS90LTX/RS90LTGTX
Secondary sheave spring:
Part number
90508-60012
Color code
PINK
Outside diameter
69.5 mm (2.736 in)
Wire diameter
6.0 mm (0.236 in)
Hole position
Sheave side-spring side (twist angle) 3-3 (60°)
Spring rate
Compression
12.32 N/mm (1.256 kg/mm, 70.34 lb/in)
Torsion
11,876 N•mm/rad (1,211 kg•mm/rad, 67,811 lb/in/rad)
Number of coils
5.53
Free length
75.0 mm (2.95 in)
Torque cam angle
43°
Drive chain:
Type
Borg Warner Automotive 23RH303-68ASM
(RS90RX/RS90GTX/RS90GTAX)
Borg Warner Automotive 23RH303-70ASM
(RS90LTX/RS90LTGTX)
Number of links
68 L (RS90RX/RS90GTX/RS90GTAX)
70 L (RS90LTX/RS90LTGTX)
Secondary reduction ratio
1.73 (38/22) (RS90RX/RS90GTX/RS90GTAX)
1.77 (39/22) (RS90LTX/RS90LTGTX)
Maximum 14 link drive chain section
length
133.35 mm (5.25 in)
<Limit>
137.35 mm (5.41 in)
Track:
Part number
8FA-47110-00 (RS90RX/RS90GTX/RS90GTAX)
8FG-47110-00 (RS90LTX/RS90LTGTX)
Width
381.0 mm (15.0 in)
Length
3,072.0 mm (120.9 in) (RS90RX/RS90GTX/RS90GTAX)
3,456.0 mm (136.1 in) (RS90LTX/RS90LTGTX)
Pitch
64.0 mm (2.52 in)
Number of links
48 (RS90RX/RS90GTX/RS90GTAX)
54 (RS90LTX/RS90LTGTX)
Thickness “A”
5.1 mm (0.20 in)
Height “B”
31.8 mm (1.25 in)
Track deflection at 100 N (10 kg, 22 lb) 30.0 ~ 35.0 mm (1.18 ~ 1.38 in)
(RS90RX/RS90GTX/RS90GTAX)
25.0 ~ 30.0 mm (0.98 ~ 1.18 in) (RS90LTX/RS90LTGTX)
MAINTENANCE SPECIFICATIONS