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| | | APRILIA NA 850 MANA update: more pictures |  Written: 14/11/2006 : 21:01. Read 27638 times (15/day). | The Aprilia NA 850 is a modern naked, powerful and fun, with a revolutionary gearbox, electronically controlled.
Completely automatic transmission with three mappings, or sequential gear change with seven gears…
  19 votes | |
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It has a 90° V twin engine, partner for this type of gearbox. It is Euro 3 compliant, thanks to the electronic injection and exhaust with catalytic converter. There is no clutch lever. Everything is controlled electronically, leaving the rider free to enjoy the ride. The sequential gear change is controlled by a convenient command on the handlebars, or alternatively by a traditional pedal command.
The tubular steel trellis frame is extremely strong with excellent torsional rigidity. Combined with a single-piece aluminium swingarm and advanced suspension.
special features of the design:
1 90°V engine, four valves per cylinder, Euro 3 compliant
2 Sequential gear change, electronic control with the possibility of manual operation with seven gears or automatic operation with three mappings.
3 Double spark plug ignition
4 Electronic fuel injection with single throttle body
5 Tank under seat
6 Helmet compartment for full-face helmet
7 Steel trellis frame with single-piece swingarm
8 43 mm upside down fork
9 Side shock absorber
10 Brakes with radial calipers
THE DESIGN
A sports naked in appearance, but capable of unique versatility. 
The tank is located lower down under the seat, helping centralise masses and lower the centre of gravity. Its "traditional" place is taken by a helmet compartment able to accommodate a full-face helmet and other objects. 
Aprilia NA 850 Mana - Technical specifications
Engine
Aprilia Four stroke longitudinal 90° V twin. Liquid cooling. Single overhead cam with chain drive, four valves per cylinder.
Fuel: Unleaded petrol.
Bore x stroke: 88 x 69 mm
Total displacement: 839.3 cc
Compression ratio: 10-11 : 1
Maximum power at the crank: 55.1 kW (75 HP) at 7250 rpm.
Maximum torque at the crank: 7.79 kgm (76.5 Nm) at 8000 rpm.
Fuel system: Integrated engine management system. Weber Marelli electronic fuel injection with one 38 mm throttle body
Ignition: Digital electronic ignition, with two spark plugs per cylinder, integrated with fuel injection system.
Starting: Electric
Exhaust: Two in one system in 100% stainless steel with three-way catalytic converter and Lambda probe
Generator: 450 W at 6000 rpm.
Lubrication: Dry sump with separate oil reservoir.
Gearbox
Sequential with manual or automatic mode selectable by the user.
- 7 ratios in manual mode
- 3 mappings (Touring, Sport, Rain) in automatic mode.
- Gear change by pedal or handlebar command.
The user can switch from automatic to sequential mode at any moment.
Clutch: Automatic
Primary drive: Belt
Final drive: Chain
Frame: High strength steel trellis
Front suspension: 43 mm upside-down fork Wheel travel: 120 mm.
Rear suspension: Aluminium alloy single-piece swingarm
Hydraulic shock absorber adjustable in spring preload and rebound damping. Wheel travel: 125 mm.
Brakes
Front: double stainless steel floating disc ( 320 mm). Radial calipers with four pistons.
Rear: steel disk ( 240 mm). Single piston caliper.
Wheels
In aluminium alloy
Front: 3.50 X 17" Rear: 6.00 X 17"
Tyres
Radial tubeless;
front: 120/70 ZR 17
rear: 180/55 ZR 17
Dimensions
Overall length: 2080 mm
Overall width: 800 mm (at handlebars)
Overall height: 1130 mm
Seat height: 800 mm
Wheelbase: 1463 mm
Trail: 103 mm
Rake angle: 24°
Tank capacity: 15 litres
ENGINE
Two cylinders, electronic fuel injection, high torque, but above all innovative transmission replacing the traditional mechanical gearbox.
With the electronically controlled sequential transmission, the rider can choose from various riding styles.
The rider has two possible options:
- Completely automatic: everything is controlled electronically, the CVT transmission enables the engine to be run at maximum torque at all times, emphasising pick-up and acceleration. 
- Sequential: The rider chooses the gear himself by means of either the control on the handlebars or the pedal command. A servo-assisted mechanism acts mechanically on the main pulley, making changing between the seven ratios extremely rapid. 
The rider can switch from automatic to sequential at any time and in any riding conditions.
The 90° V structure was chosen for its torque and power delivery characteristics and combines perfectly with this type of transmission… 850 cc for 75 HP at the crank and torque of up to 8 kgm at particularly low engine speeds (5750 revs). Figures which give a good idea of the performance of this engine which certainly does not suffer from an inferiority complex, even when compared with more sporty bikes.
The four valves per cylinder are controlled by a single overhead camshaft with chain drive, simplifying maintenance. Lubrication is dry sump, with a separate tank integrated into the engine to keep the weight of the assembly down. 
The electronic engine management involves a Weber Marelli fuel injection system with one 38 mm throttle body and an ignition system with two spark plugs per cylinder, features which result in optimum combustion and reducing pollution.
The stainless steel exhaust with catalytic converter and Lambda probe oxygen sensor make the Aprilia NA 850 Mana fully Euro 3 compliant.
FRAME
The large-section tubular steel trellis frame sets good rigidity for its class. 
SUSPENSION
It has 43 mm upside down fork with a 120 mm wheel travel.
The shock absorber, located at the side, is operated directly from the swingarm and provides adjustments for spring reload and rebound. 
THE BRAKES
Radial calipers with four pistons are reminiscent of the race track. Top level brakes . The 320 mm disks at the front, are supported by a 240 mm rear disk brake.
Aprilia NA 850 Mana - Technical specifications
Engine
Aprilia Four stroke longitudinal 90° V twin. Liquid cooling. Single overhead cam with chain drive, four valves per cylinder.
Fuel: Unleaded petrol.
Bore x stroke: 88 x 69 mm
Total displacement: 839.3 cc
Compression ratio: 10-11 : 1
Maximum power at the crank: 55.1 kW (75 HP) at 7250 rpm.
Maximum torque at the crank: 7.79 kgm (76.5 Nm) at 8000 rpm.
Fuel system: Integrated engine management system. Weber Marelli electronic fuel injection with one 38 mm throttle body
Ignition: Digital electronic ignition, with two spark plugs per cylinder, integrated with fuel injection system.
Starting: Electric
Exhaust: Two in one system in 100% stainless steel with three-way catalytic converter and Lambda probe
Generator: 450 W at 6000 rpm.
Lubrication: Dry sump with separate oil reservoir.
Gearbox
Sequential with manual or automatic mode selectable by the user.
- 7 ratios in manual mode
- 3 mappings (Touring, Sport, Rain) in automatic mode.
- Gear change by pedal or handlebar command.
The user can switch from automatic to sequential mode at any moment.
Clutch: Automatic
Primary drive: Belt
Final drive: Chain
Frame: High strength steel trellis
Front suspension: 43 mm upside-down fork Wheel travel: 120 mm.
Rear suspension: Aluminium alloy single-piece swingarm
Hydraulic shock absorber adjustable in spring preload and rebound damping. Wheel travel: 125 mm.
Brakes
Front: double stainless steel floating disc ( 320 mm). Radial calipers with four pistons.
Rear: steel disk ( 240 mm). Single piston caliper.
Wheels
In aluminium alloy
Front: 3.50 X 17" Rear: 6.00 X 17"
Tyres
Radial tubeless;
front: 120/70 ZR 17
rear: 180/55 ZR 17
Dimensions
Overall length: 2080 mm
Overall width: 800 mm (at handlebars)
Overall height: 1130 mm
Seat height: 800 mm
Wheelbase: 1463 mm
Trail: 103 mm
Rake angle: 24°
Tank capacity: 15 litres
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| Comments | |
 teoc86 (18-11-2006): well i own a brutale s and i hate cheap imitations running down the street along my gorgeus machine.so this is the creative impulse of the chinese designers?
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teoc86 (18-11-2006): and it looks very much like a brutale unfortunately. anyway i still think that the new tuono is a wonderful machine,i have test ridden a rsv mille and it is fantastic but ever since aprilia signed that deal with the chinese they keep coming off with this knock off s
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