Specifications


RC30 Specifications

Canadian Specification UNO
Basics Overall Length 2045 mm --  
Overall Width 700 mm --  
Overall Height 1100 mm --  
Wheelbase 1410 mm --  
Ground Clearance 130 mm --  
Fuel Capacity 18 L 4.8 US gal
Fuel Reserve Capacity 3.5 L 1.2 US gal
Vehicle Capacity load 114 kg 251 lb.
Dry Weight 185 kg 408 lb.
Curb Weight 204 kg 450 lb.
Engine Type -- -- -- Water cooled four stroke
Cylinder Arrangement -- -- -- 4 Cylinder 90 Degree Vee
Bore x Stroke 70 mm  x 48.6 mm
Displacement 748.14 cm3 -- 1st overbore 752.42 cm3
2nd overbore 756.71 cm
3
Compression Ratio 11 :1 -- Static
Power (Honda Canada) 112 hp at 11500 RPM (which equals 51.1 ft*lb at 11500 RPM)
Power (Cycle Canada). 110 hp at 11000 RPM (which equals 52.5 ft*lb at 11000 RPM)
Rated Torque 53.5 ft*lb at 10500 RPM (which equals 107 hp at 10500 RPM)
Max Continuous Speed 12500 RPM -- Redline
Cams
Valves
and
Cylinder Heads
Valve Train -- -- -- Dual over head cams on roller and needle bearings, 4 valves per cylinder, shim under bucket lash adjustment, preloaded gear drive.
Intake Valve Opens 25 Deg BTDC at 1 mm lift (0.039" Lift)
Intake Valve Closes 45 Deg ABDC at 1 mm lift (0.039" Lift)
Exhaust Valve Opens 50 Deg BBDC at 1 mm lift (0.039" Lift)
Exhaust Valve Closes 20 Deg ATDC at 1 mm lift (0.039" Lift)
Valve Clearance
Intake - Cold
0.15 mm  to 0.21 mm (0.006 inch to 0.008 inch)
Target is 0.18 mm (0.007")
Valve Clearance
Exhaust - Cold
0.27 mm  to 0.33 mm (0.011 inch to 0.013 inch)
Target is 0.30 mm (0.012")
Camshaft Lobe Height Intake 34.12 mm to 34.28 mm (1.343" to 1.350")
Camshaft Lobe Height Exhaust 34.22 mm to 34.38 mm (1.347" to 1.354")
Camshaft Runout 0.030 mm  or 0.001 inch (Service Limit)
Valve Stem OD Intake 4.475 mm to 4.490 mm (4.47 mm Service Limit)
Valve Stem OD Exhaust 4.455 mm to 4.470 mm (4.45 mm Service Limit)
Stem To Guide 0.010 mm to 0.040 mm (0.080 mm Service Limit)
Valve Seat Width 1.0 mm to 1.3 mm (1.5 mm service limit)
Valve Spring Free Length - Outer 37.7 mm -- Service Limit
Valve Spring Free Length - Inner 40.9 mm -- Service Limit
Valve Lifter OD 25.978 mm to 25.993 mm (25.97 mm Service Limit)
Valve Lifter Bore ID 26.010 mm to 26.026 mm (26.04 mm Service Limit)
Cylinder Head Warpage 0.10 mm -- Service Limit
Crankshaft Con Rod Big End Side Clearance 0.028 mm to 0.268 0.400 mm Service Limit (Street)
0.350 mm Service Limit (Race)
Crankshaft Runout -- -- -- 0.030 mm Service Limit (Street)
0.020 mm Service Limit (Race)
Crankshaft Crankpin oil Clearance 0.030 mm to 0.052 0.080 mm Service Limit (Street)
0.052 mm Service Limit (Race)
Crankshaft Main Journal Oil Clearance 0.023 mm to 0.045 0.060 mm Service Limit (Street)
0.045 mm Service Limit (Race)
Intake System Air Filtration -- -- -- Under tank airbox with paper filter, suction line from crankcase breather. Carburetors retained by a cast aluminum plenum.
Caburetor Type -- -- -- Downdraft CV with manual choke
Carburetor Make/Model -- -- -- Keihin Model VD
Throttle Bore -- -- -- 38mm (1.5 inch)
Main Jets - Front Cylinders 2(L) and 4(R) #115 -- --  
Main Jets - Rear Cylinders 1(L) and 3 (R) #112 -- --  
Slow Jet #38      
Pilot Screw Opening Turns Out 2 -- -- 2.125 (Australia) and 1.5 (Switzerland)
Idle Speed 1200 RPM -- +/- 50 RPM
Cylinder Compression Pressure 1250 kPa +/- 200 kPa (178 psig +/-28 psig)
Oiling System Engine Oil Capacity 2.9 L -- After Drain
Engine Oil Capacity 3.8 L -- After Teardown
Oil Pressure 470 kPa to 570 kPa (67 to 81 psig) at 5000 RPM at 80 C
Oil Pump Flow 54 L/min at 5000 RPM
Cooling Coolant Capacity 2.4 L -- Engine & Radiator
Coolant Capacity 0.3 L -- Expansion Tank
Coolant Capacity 2.7 L -- Total System
Radiator Cap Relief 95 kPa to 125 kPa (13.5 to 17.8 psig)
Thermostat Setting 80 C    to 84 C (176 F to 183 F)
Thermostat Lift - Min 8 mm at 95 C
Temperature Sensor 60 C 93 to 115 ohm
Temperature Sensor 85 C 39 to 49 ohm
Temperature Sensor 110 C 18 to 123 ohm
Temperature Sensor 120 C 14 to 18 ohm
Pump Type       Oil pump Driven, Centrifugal, backward vane, mechanical and lip seals, supply & return ports for oil cooler
Clutch Clutch Type -- -- -- Wet multiplate, sprag slipper on outer plates.
Clutch Spring Type -- -- -- Steel Diaphragm x 2
Actuation -- -- -- Hydraulic master/slave system, actuator rod thru mainshaft to ball bearing lifter
Basket -- -- -- Steel Reinforced, Spring Dampened
No Plates / Disks 10 Disk 9 Plate
Clutch Fluid -- -- -- DOT 4
Outer Guide ID 24.995 mm to 25.012 mm (25.08 mm Service Limit)
Clutch Spring Free Height 3.2 mm -- Service Limit
Clutch Center B ID 74.404 mm to 74.430 mm (74.46 mm Service Limit)
1 Way Clutch Inner OD 57.800 mm to 57.813 mm (57.77 mm Service Limit)
Clutch Disk Thickness 2.92 mm to 3.08 mm (2.5 mm Service Limit)
Clutch Plate Warpage 0.30 mm -- Service Limit
Starter Drive Gear OD 45.657 mm to 45.673 mm (45.64 mm Service Limit)
Shift Forks Claw Thickness 6.430 mm to 6.500 mm (6.10 mm Service Limit)
Left & Right fork ID 14.016 mm to 14.034 mm (14.05 mm Service limit)
Transmission Transmission Type 6 Speed -- Constant Mesh, Close Ratio with undercut dogs.
Primary Drive -- -- -- Straight cut gears with pre-load
Primary Drive Ratio 1.939 :1 -- 64/33
Gear Ratio - First 2.400 :1 -- 36/15 - 83.2 mph at redline 12,500 RPM
Gear Ratio - Second 1.941 :1 -- 33/17 - 102.9 mph at redline 12,500 RPM
Gear Ratio - Third 1.631 :1 -- 31/19 - 122.4 mph at redline 12,500 RPM
Gear Ratio - Fourth 1.434 :1 -- 33/23 - 139.2 mph at redline 12,500 RPM
Gear Ratio - Fifth 1.291 :1 -- 31/24 - 148.5 mph at 12,000 RPM
Gear Ratio - Sixth 1.192 :1 -- 31/26 - 154.1 mph at power peak 11,500 RPM
Final Reduction Ratio 2.500 :1 -- 40/16
Tire Circumference 81.78 inches -- Estimated (170/60-18)
Engine Speed  at 100 km/hr 4638 RPM -- Estimated
Gear ID - M5,M6 28.000 mm to 28.021 28.04 mm Service Limit
Gear ID - C2,C3,C4 31.000 mm to 31.016 31.04 mm Service Limit
Gear Bush OD - M5,M6 27.959 mm to 27.980 27.94 mm Service Limit
Gear Bush OD - C3,C4 30.950 mm to 30.975 30.93 mm Service Limit
Gear Bush OD - C2 30.970 mm to 30.995 30.95 mm Service Limit
Gear Bush ID - M5 24.985 mm to 25.006 25.03 mm Service Limit
Gear Bush ID - C2 28.000 mm to 28.021 28.04 mm Service Limit
Mainshaft OD at C2 24.959 mm to 24.980 27.95 mm Service Limit
Countershaft OD at C2 27.967 mm to 27.980 27.96 mm Service Limit
Gear To Bushing Clearance - M5,M6 0.020 mm to 0.062 0.10 mm Service Limit
Gear To Bushing Clearance - C3,C4 0.025 mm to 0.066 0.11 mm Service Limit
Gear To Bushing Clearance - C2 0.005 mm to 0.046 0.09 mm Service Limit
Bushing To Shaft Clearance - M5 0.005 mm to 0.047 0.06 mm Service Limit
Bushing To Shaft Clearance - C2 0.020 mm to 0.054 0.06 mm Service Limit
Ignition Type -- -- -- CDI
Static Ignition Timing 15 Deg BTDC Swiss bike is 10 Deg BTDC
Spark Plug 10 mm -- NGK CR9EHIX-9 (For a modern Iridium tip)
Firing Order -- -- -- 1 - 4 - 3 - 2
Alternator 374 Watt at 5000 RPM
Battery Capacity 12 Volt 8 Amp - Hour
Fuse 30 Amp Main (20A x 1, 10A x 4)
Frame Type -- -- -- Backbone Type - Diamond layout with 3 section extrusions and cast headstock, engine lugs and rear section. Tig welded.
Castor Angle 24 Degree 50 Minute (Approx 24.83 degrees)
Trail 91 mm 3.60 inch
Suspension Front Suspension Type -- -- -- 43mm Telescopic USR fork Adjustable compression & rebound damping, single nut quick change front wheel clamps
Front Suspension Travel 120 mm 4.72 inch
Front Fork Oil Capacity 486 cc --  
Front Fork Fluid -- -- -- ATF or equivalent
Front Fork Air Gap 98 mm --  
Front Fork Spring 0.774 kg/mm 43.3 lb/inch
Rear Suspension Type -- -- -- Pro-Arm progressive rate, single sided/single nut wheel, inboard brake, Pro Squat linkage, adjustable for preload and compression & rebound damping
Rear Shock Absorber   kg to   kg static load (N2 Pressure Load)
12.0 kg Service Limit
Rear Shock Absorber Spring Free Length 167.5 mm -- Service Limit
Rear Shock Absorber Spring Installed Length 160 mm Std 153 mm to 170 mm Service Range
Rear Shock Spring 15.9 kg/mm 890 lb/inch
Rear Suspension Travel 130 mm 5 inch
Front Wheel/Tire Size -- -- -- Select <Wheels and Tires> on sidebar for info.
Rear Wheel/Tire Size -- -- -- Select <Wheels and Tires> on sidebar for info.
Cold Tire Pressure - Front 250 kPa 36 psig
Cold Tire Pressure - Rear 290 kPa 42 psig
Brakes Front Brake
Slotted friction surface
310 mm  x 6 mm Thick stainless steel disk x 2 with 4 piston calipers housing split size pistons, GG quick change pads.
Rear Brake
Slotted friction surface
220 mm  x 7 mm Thick with 2 piston floating caliper, GG pads
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