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new sprokets for VTR250?

Discussion in 'Bling and Appearance' at netrider.net.au started by idontlikemondays, Jul 29, 2006.

  1. so i need new chain and sprokets. any suggestions on possibilites for a shorter ratio drivetrain. the current top speed is about 150, i wouldnt want to get it much below 135 or so. also where would i be able to get torque specifications for the bike?

  2. Do you mean as in the torque specifications for tightening up certain bolts or the torque that the engine produces ?

    both should be in your manual, if you dont have a manual google the specifications or google the manual and download it
  3. Honda VTR 250
    Year: 2002
    Category: Naked bike
    Rating: 75.1 out of 100. Show full rating and compare with other bikes
    Engine and transmission
    Displacement: 249.00 ccm (15.19 cubic inches)
    Engine type: V2
    Stroke: 4
    Power: 32.00 HP (23.4 kW)) @ 10500 RPM
    Torque: 24.00 Nm (2.4 kgf-m or 17.7 ft.lbs) @ 8500 RPM
    Compression: 11.0:1
    Bore x stroke: 60.0 x 44.1 mm (2.4 x 1.7 inches)
    Fuel system: Carburettor
    Valves per cylinder: 4
    Fuel control: DOHC
    Cooling system: Liquid
    Gearbox: 5-speed
    More details Consult a Honda repair manual.
    Physical measures
    Dry weight: 140.0 kg (308.6 pounds)
    Seat height: 780 mm (30.7 inches) If adjustable, lowest setting.
    Overall height: 1,050 mm (41.3 inches)
    Overall length: 2,040 mm (80.3 inches)
    Overall width: 720 mm (28.3 inches)
    Ground clearance: 170 mm (6.7 inches)
    Wheelbase: 1,410 mm (55.5 inches)
    Chassis and dimensions
    Front tyre dimensions: 110/70-17 54H
    Rear tyre dimensions: 140/70-17 66H
    Front brakes: Single disc
    Rear brakes: Single disc
    Speed and acceleration
    Power/weight ratio: 0.2286 HP/kg
    Other specifications
    Fuel capacity: 13.00 litres (3.43 gallons)
  4. If your asking about changing the ratio for more acceleration and less top speed, your probably not going to notice alot of difference unless you go for atleast 2-3 teeth on the rear sprocket. If you really are just using it around town and want a bit more zip but still have the headroom on the freeway, you can probably go to 4-5 teeth up on the rear, or 1 down on the front & 3 up on the rear.
  5. by going up 3 teeth on the rear, what would he top speed be now?
  6. hey thanks for the replies.
    yeah i meant the torque specs on tightening bolts. i dont have an owners manual, and honda told me they dont make a service and repair manual for the bike yet. ive ripped a few bolts in half by overtightening, and lost some by not tightening enough. after waiting 5 days for the replacement bolts from honda, then breaking them again, i gave up and went to bunnings to get some high tensile steel ones. was just hopeing i could avoid the fuss next time
    again, thanks for your help

    ps sorry about the funky gibberish, im used to speaking in car terms.
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  9. shit guys i cannot tell you how much i appreciate that, thanks heaps!
  10. im 7+ in the rear top speed is 140 plus its much more fun around the city
  11. shit thats sounds like the go, were they easy to find, any particular brand?