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Specifications
121
Specifications
Service Data
Tire size
Front 120/70ZR17M/C (58W)
Rear 180/55ZR17M/C (73W)
Tire type Radial, tubeless
Recommended
Tires
Front DUNLOP D214F K
Rear DUNLOP D214K
Tire air pressure
Front 36 psi (250 kPa, 2.50 kgf/cm
2
)
Rear 42 psi (290 kPa, 2.90 kgf/cm
2
)
Minimum tread
depth
Front 0.06 in (1.5 mm)
Rear 0.08 in (2.0 mm)
Spark plugs (standard) VUH27D (DENSO)
Spark plug gap
(non-
adjustable)
0.031 to 0.035 in
(0.80 to 0.90 mm)
Idle speed 1,400 ± 100 rpm
Recommended
engine oil
API Service Classification SG or higher except
oils labeled as energy conserving or resource
conserving on the circular API service label,
SAE 10W-30, JASO T 903 standard MA, Pro
Honda GN4 4-stroke oil (USA & Canada) or
Honda 4-stroke oil, or an equivalent
motorcycle oil
Engine oil
capacity
After draining 2.9 US qt (2.7 liters)
After draining &
engine oil filter change
3.0 US qt (2.8 liters)
After disassembly 3.7 US qt (3.5 liters)
Recommended
brake fluid
Honda DOT 4 Brake Fluid
Cooling system
capacity
3.2 US qt (3.0 liters)
Recommended
coolant
Pro Honda HP Coolant
Recommended
drive chain
lubricant
Pro Honda HP Chain Lube
Drive chain slack 1 3/16 to 1 9/16 in (30 to 40 mm)
Standard drive
chain
DID 525HV or RK 525ROZ6
No. of links 112
Standard
sprocket sizes
Engine sprocket 16T
Rear wheel sprocket 42T
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