Results 1 to 6 of 6

Thread: Close ratio?

  1. #1
    vfr
    vfr is offline
    Baby Twin
    Join Date
    Jul 2009
    Posts
    2

    Close ratio?

    Hi i'm from Singapore and new here. Need to know whether the RSV4 comes with close ratio gear box? Thks.

  2. #2
    Evil Twin Mahoney's Avatar
    Join Date
    May 2009
    Location
    Essex
    Posts
    483
    Does this help?

    APRILIA RSV4 FACTORY: Technical Specifications

    Engine type: Aprilia longitudinal 65° V-4 cylinder, 4-stroke, liquid cooling system, double overhead camshafts (DOHC), four valves per cylinder

    Bore and stroke: 78 x 52.3 mm

    Total engine capacity: 999.6 cc

    Compression ratio: 13:1

    Maximum power at crankshaft: 180 CV (132.4 kW) at 12,500 rpm

    Maximum torque at crankshaft: 115 Nm at 10,000 rpm

    Induction and fuel system: Airbox with front dynamic air intakes. Variable length intake ducts controlled via ECU.

    4 Weber-Marelli 48-mm throttle bodies with 8 injectors and latest generation Ride-by-Wire engine management.

    Choice of three different engine maps selecby the rider with bike in motion: Track | Sport | Road

    Ignition: Magneti Marelli digital electronic ignition system integrated in engine control system, with one spark plug per cylinder and “stick-coil”-type coils

    Exhaust system: 4 into 2 into 1 layout, single oxygen sensor, lateral single silencer with engine control unit-controlled butterfly valve and integrated trivalent catalytic converter (Euro 3)

    Lubrication: Wet sump lubrication system with oil radiator and two oil pumps (lubrication and cooling)

    Gearbox: 6-speed cassette type gearbox

    1st: 39/15 (2.6)
    2nd: 33/16 (2,063)
    3rd: 34/20 (1.7)
    4th: 32/22 (1,455)
    5th: 34/26 (1,308)
    6th: 33/27 (1,222)

    Clutch: Multi-disc oil-bath, with mechanical slipper system

    Primary drive: Straight cut gears and integrated flexible coupling, drive ratio: 73/44 (1,659)

    Secondary drive: Chain, Drive ratio: 40/16 (2,5)

    Chassis: Twin-spar adjustable aluminium frame, with castings and pressings. Envisaged adjustments:

    ·headstock position and rake
    ·engine height
    ·swingarm pin height
    ·Öhlins adjustable steering dumper

    Front suspension: Öhlins Racing upside-down fork, 43-mm stanchions (with Tin surface treatment). Low profile forged aluminium radial caliper mountings. Completely adjustable spring preload and hydraulic compression and rebound damping. Wheel travel: 120 mm

    Rear suspension: Twin sided aluminium swingarm; mixed low thickness and sheet casting technology.
    Öhlins Racing monoshock with piggyback with completely adjus: spring preload, wheelbase and hydraulic compression and rebound damping. APS progressive linkages. Wheel travel: 130 mm

    Brakes:
    Front: Dual 320-mm diameter floating stainless steel disc with lightweight stainless steel rotor and aluminium flange with 6 pins. Brembo monobloc radial callipers with 4 34-mm opposite. Sintered pads. Radial pump and metal braided brake hose

    Rear: 220-mm diameter disc; Brembo floating caliper with two 32-mm isolated pistons. Sintered pads. Pump with integrated tank and metal braided hose

    Rims:Aprilia forged aluminium alloy rims, completely machined, 5 split spokes.

    Front:3.5″X17″
    Rear: 6″X17″

    Fuel Tank: 17 litres (4-litre reserve included)

    Dimensions (default settings):

    Max. length: 2040 mm
    Max. width: 735 mm (at the handlebar)
    Max. height: 1120 mm
    Min. height from the ground: 130 mm
    Saddle height: 845 mm
    Center to center distance: 1420 mm
    Trail: 105 mm
    Steering angle: 24.5°
    Curb weight (dry): 179 kg

  3. #3
    One Liter Duc Eater millekid's Avatar
    Join Date
    Jul 2007
    Posts
    868
    whaaaaaaaaaaaaat

  4. #4
    vfr
    vfr is offline
    Baby Twin
    Join Date
    Jul 2009
    Posts
    2
    But there's no indication whether it is close ratio or not. Perhaps someone can interprete that gear readings. Thks.

  5. #5
    redratbike
    Guest
    as its basically a race bike why ask...just change sprockets if your that bothered

  6. #6
    One Liter Duc Eater Deacs's Avatar
    Join Date
    Jun 2009
    Location
    Sunny Oxfordshire
    Posts
    888
    my guess would be yes. google brought up this: V-4 engine is ultra-compact, which allows the entire bike to be 250cc GP-sized. Six-speed gearbox is cassette-type, expediting internal gear-ratio changes for racing. Take a look at the last of the facory's g'box ratio's (factory had close-ratio g'box) if they're similar (its a twin so may be slightly different) then you have your answer
    Last edited by Deacs; July 22nd, 2009 at 03:39 AM.

Similar Discussions

  1. chaging the tooth ratio on 07 rsvr
    By blitz58 in forum Aprilia RSVR
    Replies: 4
    Last Post: September 6th, 2011, 01:47 AM
  2. Replies: 4
    Last Post: August 26th, 2011, 07:52 AM
  3. Clutch master cylinder ratio
    By RSVee in forum Aprilia RSVR
    Replies: 0
    Last Post: August 9th, 2011, 08:39 AM
  4. Gear Ratio's in conjunction with tyre circumference
    By Corsa_RSVR in forum Aprilia RSVR
    Replies: 2
    Last Post: November 18th, 2009, 11:14 PM
  5. New toy up close
    By Badger in forum Pictures
    Replies: 20
    Last Post: November 8th, 2009, 07:20 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •