Specifications
Dyno Dynamics - 450DS Motor Cycle Dynamometer
Applicable Vehicles
Standard road bikes
Road and race
On road/off road
Road tyres/ knobby tyres
From 50 cc motorcycles through to high powered  machines
Agricultural bikes
Quad bike (four wheel motorcycle) (*with optional  adaptors)
Junior dragster (*with optional adaptors)
Quarter midget (*with optional adaptors
Engine Types

Four stroke
Two stroke

Vehicle / axle weights
Maximum vehicle weight 2,000 kg (4,400 lb)
Maximum axle weight (per axle) 1,000 kg (2,200 lb)
Power, Tractive Effort, Torque and Speed (Note 3)
Maximum power graphing 675 kW (900 HP)
Max. tractive effort graphing 11,150 N (2,495 lb)
Max. roller torque graphing 2,250 Nm (1,650 ft lb)
Max. axle torque graphing (Note 1) 3,550 Nm (2,600 ft lb)
Max. engine torque graphing (Note 2) 1,300 Nm (950 ft lb)
Max. power steady speed 450 kW (600 HP)
Max. tractive effort steady speed 7,400 N (1,650 lb)
Max. roller torque steady speed 1,500 Nm (1,100 ft lb)
Max. axle torque steady speed (Note 1) 2,350 Nm (1,750 ft lb)
Max. engine torque steady speed (Note 2) 850 Nm (650 ft lb)
Max road speed 320 km/h (200 MPH)
Roller Chassis
Retardation and Loading Single retarder/PAU
Retarder/PAU type Magnetic eddy current retarder/PAU
Load/speed availability High load available at all speeds
Cooling fins per retarder/PAU 84
Rollers  
Drive roller traction surface High grip Dyno Dynamics unique square cut knurl
Roller Diameter 405 mm (16" ) 
Roller length 400 mm (16 ") 
Roller rotation Bi-directional
Emergency stop Electromagnetic emergency roller stop 
Bearings 2 
Balance Rollers and retarder(s)/PAU(s) dynamically balanced
Traction

Roller surface Dyno Dynamics unique square cut knurl
Low tyre temperature operation
Tie down system Fully adjustable
Axle download User adjustable
Wheel clamp Manual/Automatic air clamp*
Wheelbase adjustment Manual/Electric*
Inertias  
Roller inertia and retarder (combined) 2.186 kgm2 (51.8 lbft2)
Bed equivalent inertia (typical) 184 kg (406 lb)
Starter motor* 12 Volt
Installation and Dimensions
Refer installation drawings for detailed dimensions
Mounting
Above ground  
Length without run-up ramp
3,080 mm (121" )  
Length with run-up ramp
5,380 mm (212" )  
Width
1,235 mm (48.6" )  
Working platform height
430 mm (16.9 ")  
Roller surface above ground
430 mm (16.9 ")  
Access
Removable access ramp  
Dyno Dynamics DS computerised control system
General description Combined analogue and digital control
Instrumentation  
Computer Custom turn-key computer system
Monitor* Country dependent - refer factory
Additional monitors Additional monitors and remote displays available - refer factory
Command Module Toachscreen PDA (BlueTooth)
SnapShot button
Emergency Stop button
Reset, Next Step button
Display: Desired Speed, Load, Ramp Rate, RPM, etc
Ramp: Up-Hold-Down switch
Fan over-ride control 
Cabinet* Range of heavy duty steel cabinets available - refer factory
Automatic fan control* On-Off-Auto. Controls 2 fans. Cool-down timer
Power loss calculator Calculates engine power / torque from wheel power
Measurement and Display
Power display resolution 0.1 kW (0.1 HP)
Tractive effort display resolution 10 N (1.0 lb)
Force measurement Precision electronic shear beam load cell
Interface Vac pressure boost*
Inlet air temperature
High speed Air:Fuel ratio/Lambda*
Thermo-couple inputs*
Auxiliary inputs*
Fan control
Tachometer Multiple inputs (refer to tachometer documentation)
Atmospheric Correction Screen Inlet air temperature
Ambient temperature
Barometric pressure
Relative humidity
Mechanical efficiency (Dyno  Dynamics ATMC2 only)
Resultant correction factor
Bar Screen  
Date, time Used to date and time stamp  reports
Customer name 35 characters
Test details "Poor economy, low power "etc.
Vehicle identification Vehicle registration, license,  race number etc
RPM:Road speed ratio Derived from ignition system, vehicle ECU, roller speed,  injector, optical pick-up
Power Analogue bar & digit: kW (HP) [0.1 kW (0.1 HP)  resolution]
Tractive Effort Analogue bar & digit. N (lb) [1 N ( 0.1 lb) resolution]
Speed Analogue bar & digit. km/h (MPH) [0.1 km/h (0.1 MPH)  resolution]
Inlet air temperature Degrees C (F) [0.1 resolution]
Fuel mixture* Petrol (gasoline), LPG  (propane), alcohol, diesel Air:Fuel ratio and Lambda [0.1 AFR/0.01 Lambda  resolution]
Manifold vacuum/boost* Metric and imperial units. Gauge & absolute reference
Engine RPM Ignition, ECU, roller, optical pick-up*
Engine torque Nm (ft lb) 
Range of user definable inputs Temp, volts, pressure drops, TPS, etc
Graph screen  
Road power kW (HP)
Road tractive effort N (lb)
Road speed km/h (MPH)
Engine power kW (HP)
Engine torque Nm (ft. lb) 
Engine speed RPM
Fuel mixture* Petrol (gasoline), LPG  (propane), alcohol, diesel Air:Fuel ratio and lambda [0.1 AFR/0.01 Lambda  resolution]
Vacuum / boost* Metric and imperial units. Atmospheric & absolute reference
Time Seconds
User defined inputs Up to 4
Coast-down correction Based on coast-down test
Drive-train loss Based on coast-down test, ShootOut specification loss
Auto Graph SnapShot Triggers SnapShots at user defined road speed or engine  speed  intervals
Large Digits on graph screen  
Air:Fuel ratio Air:Fuel ratio and lambda
Vacuum / boost* Metric and imperial units. Atmospheric & absolute reference
RPM Derived from ignition system, ECU, roller speed, optical  pick-up*
Graph Types Full screen: Diagnostic and performance graphs
High resolution
Step ramp (user definable step)
Step graph
Snap graph
SnapShot Screen  Data acquisition of values defined by user
User definable recording
Work performed
Work history  
Drive-cycle screen  Factory definable
Test Modes
Constant speed mode Dial in the desired speed 
Constant load mode Dial in the desired load
Ramp mode Ramp Up-Hold-Down. Dial in the desired acceleration
Cooling fans
Range of cooling fans depending on country of  installation
Cooling fan control*
Software Software: independent control of two fans (or other devices):
On-Off-Auto Programmable cool-down timers
Command Module Manual fan control over-ride
Electrical Supply - (Varies with country and region of installation, refer  factory)
Australia Dynamometer: 240 - 250V single phase 50 Hz
Fans: 240 - 250 V  single phase / 415V three phase 
Europe Dynamometer: 220 - 250V single phase 50 Hz 
USA Fixed installation: 220 - 250V two phase 60 Hz
Mobile*:  220V single phase 60 Hz
Shipping weights and dimensions (Approximate) 
Dynamometer chassis crated single  retarder
   600 kg
 1,500 mm x 770 mm x 880 mm
1,320 lb 59“ x 30.5“ x 35”
Ramp crate
250 kg 1,300 mm x 2,650 mm x
780 mm
550 lb 51” x 104.5" x 31”
Standard cabinet and control system
285 kg 790 mm x 880 mm x 1900 mm
630 lb 31" x 35“ x 75”
Small cabinet and control system (computer monitor not included)
200 kg 790 mm x 880 mm x
1400 mm
440 lb 31“ x 35“ x 55”

* Denotes Optional 

Note 1: Assumes 640 mm (25") bike tyre diameter
 Note 2: Assumes max torque occurs @ 5,000 RPM
 Note 3: Assumes sufficient traction
 Note 4: Distance between outer roller ends
 Note 5: Distance between inner roller ends

 Due to Dyno Dynamics commitment to ongoing research and development, specifications may  change  without notice.