Honda CB TWISTER Owner's Manual page 88

ENGINE
Bore and stroke
Compression ratio
Displacement
Spark Plug
Standard
Spark plug gap
Idle speed
Valve clearance (Cold)
CHASSIS AND SUSPENSION
Caster
Trail
Tyre size, front
Tyre size, rear
Tyre type
80
50.0 x 55.6 mm (1.97 x 2.19 in)
9.0 : 1
109.1 cm³ (6.66 cu-in)
CPR7EA-9 (NGK)
0.8 - 0.9 mm (0.031 - 0.035 in)
1,400 ± 100 min (rpm)
-1
Intake 0.10mm (0.004 in)
Exhaust 0.10mm (0.004 in)
26°
138 mm (5.4 in)
70/100-17M/C 40P
80/100-17M/C 53P
Tubeless tyre