Honda CB650RA Owner's Manual page 183

1st 3.071
2nd 2.352
3rd 1.888
Gear ratios
4th 1.560
5th 1.370
6th 1.214
Reduction
ratios
1.690 / 2.800
(primary /
final)
Service Data
■
Front
Tyre size
Rear
Tyre type
Front
Recommended
Tyres
Rear
Normal
Special
Tyre category of
use
*1 Snow
Moped
Front
Tyre air pressure
Rear
Front
Minimum tread
depth
Rear
Spark plug (standard)
(non-
Spark plug gap
adjustable)
Idle speed
Honda 4-stroke motorcycle oil API Service
Classification SJ or higher, excluding oils
Recommended
marked as "Energy Conserving" or
engine oil
"Resource Conserving," SAE 10W-30, JASO
T 903 standard MA
*1 : EU regulation
Specifications
120/70ZR17M/C (58W)
180/55ZR17M/C (73W)
Radial, tubeless
DUNLOP Roadsport2 N
DUNLOP Roadsport2 N
Permitted
Not Permitted
Not Permitted
Not Permitted
250 kPa (2.50 kgf/cm , 36 psi)
2
290 kPa (2.90 kgf/cm , 42 psi)
2
1.5 mm (0.06 in)
2.0 mm (0.08 in)
IMR9E-9HES (NGK) or
VUH27ES (DENSO)
0.8 - 0.9 mm (0.03 - 0.04
in)
1,250 ± 100 rpm
177