SPEC2 - 19MAINTENANCE SPECIFICATIONSTT-R125LWItem Standard LimitSteering system:Steering bearing type (upper) Angular bearing ----(lower) Taper roller bearing ----Front suspension:Front fork travel 180 mm (7.09 in) ----Fork spring free length 339 mm (13.35 in) 334 mm (13.15 in)Spring rate, STD K = 3.20 N/mm(0.330 kg/mm, 18.5 lb/in)----Optional spring/spacer No ----Oil capacity 156 cm 3(5.49 Imp oz, 5.27 US oz)----Oil level 130 mm (5.12 in) ----Oil grade Fork oil 10W or equivalent ----Inner tube outer diameter 30 mm (1.18 in) ----Front fork top end Zero mm (Zero in) ----Rear suspension:Shock absorber travel 65 mm (2.56 in) ----Spring free length 178 mm (7.01 in) ----Fitting length 165 mm (6.50 in) ----Spring rate, STD K = 58.9 N/mm(6.0 kg/mm, 336 lb/in)----Optional spring No ----Enclosed gas pressure 1,500 kPa(15 kg/cm 2 , 213 psi)----Wheel:Front wheel type Spoke wheel ----Rear wheel type Spoke wheel ----Front rim size/material 19 × 1.40/Steel ----Rear rim size/material 16 × 1.60/Steel ----Rim runout limit:Radial ---- 2.0 mm (0.08 in)Lateral ---- 2.0 mm (0.08 in)Drive chain:Type/manufacturer DID428HD/DAIDO ----Number of links 122 links ----Chain slack 35 ~ 50 mm (1.4 ~ 2.0 in) ----Chain length (10 links) ---- 121.4 mm(4.78 in)Front disc brake:Disc outside dia. × Thickness 220 × 3.0 mm (8.66 × 0.12 in) 220 × 2.5 mm(8.66 × 0.10 in)Deflection limit ---- 0.15 mm (0.006 in)Pad thickness 4.0 mm (0.16 in) 0.8 mm (0.03 in)Master cylinder inside dia. 11.0 mm (0.433 in) ----Caliper cylinder inside dia. 22.22 mm (0.875 in) × 2 ----Brake fluid type DOT #4 ----