I want to got +2 rear sprocket 08 VFR 800 VTEC

Discussion in 'Mechanics Garage' started by AWP34, Jul 1, 2015.

  1. AWP34

    AWP34 New Member

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    Can anyone tell me which Sprocket manufacturer and model number can help me achieve this. Also where online can I purhcase?

    Thank you for your time.
     
  2. stewartj239

    stewartj239 Member

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    This past winter, I went from a +1 to +2 on the rear. It is a huge improvement and really wakes the bike up. You can buy on eBay Motors. Do a search on "45 VFR" and you'll get everything out there available. You can then narrow it down by steel or aluminum.
     
  3. FJ12rydertoo

    FJ12rydertoo Member

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  4. Arnzinator

    Arnzinator New Member

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    What Stewartj239 & FJ12rydertoo said. I recently replaced the chain & sprockets my 07 & went with a 45t on the rear. Huge improvement! Purchased from Sprocket Center, $197 with a fancy RK gold chain. Don't forget to budget for a Speedo Healer. Your speedo will be noticeably off after switching sprocket sizes.

    20150603_101328.jpg
     
  5. DriverDave

    DriverDave New Member

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    Another plug for SprocketCenter. Make sure you get a full kit with chain and both sprockets. Some will say it's not necessary, but it's a sure thing that you won't have problems if you go ahead and replace everything together, every time. You can also get a chain breaker/rivet kit from them, if you don't already have one.
     
  6. sunofwolf

    sunofwolf New Member

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    speedo not needed
     
  7. FJ12rydertoo

    FJ12rydertoo Member

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    You most definitely will need something, whether it's a SpeedoHealer, or a bicycle computer. Your speedometer will be about 12%-15% fast, and your odometer will now be about 5% fast. I use a bicycle computer because I'm a tightwad. And telling the cop that your speedometer is inaccurate will not get you out of a ticket. :biggrin:
     
  8. sunofwolf

    sunofwolf New Member

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    It shows a lower speed with +2 rear spocket not faster. It should only be 4% faster then the real speed. So if you look at the speedo just subtract a few mph.
     
  9. FJ12rydertoo

    FJ12rydertoo Member

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    When you put a 45 tooth sprocket on the rear, the speedometer will be reading around 75 mph when you are actually doing about 65 mph. And the difference will increase the faster you go. Easy to be off by 5 mph at 45 mph, and that can get you a ticket. Why guess and put yourself at risk?
     
  10. sunofwolf

    sunofwolf New Member

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    slow down when you see a cop, you are right a acute speedo helps
     
  11. rhoderage

    rhoderage New Member

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    Sprocketcenter as well; I went -1 (front) +2 (rear) and did the 520 conversion with an RK X-ring chain. It is an excellent combination. Also added a SpeedoDRD - if your factory Speedo is already off by 7.7%, then you add changed gearing on top of that, you will be way off... SpeedoDRD is a less expensive version of a Speedohealer; its lightweight, plugs directly into the factory connector, and super easy to set up. I'm a big +1 one for the SpeedoDRD.
     
  12. mark641

    mark641 New Member

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    Sorry to go against the flow here guys but I have never understood the need for lowered gearing on the road and the fixation of 520 C&S kits.

    I've changed gearing for racing and track days but on road bikes I always got tired of the thing revving at cruising speed and looking for 7th gear!
    Just ride in a gear lower than you normally would in a given circumstance and you get the same effect, but when cruising in top it feels 'right'. That and you don't burn extra fuel needlessly or have to go through all the speedo crap.

    520 C&S? It's a sports tourer with the accent on miles. what difference does a 520 make ? Does it make you faster? No/doubtful...Does it wear faster? Maybe. Is it on the grounds of cost?? I don't get it.
     
  13. DriverDave

    DriverDave New Member

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    The 520 is primarily a weight saving issue. Next time you go to the bike shop, hold a 530 in one hand and a 520 in the other. It's surprising just how different they are in size.
    And most people gear down to make their bikes quicker (probably the same exact reason you do it at the track). It also helps with low speed/traffic riding. Yes you sacrifice top end and increase your cruising rpm, but for some, that's an acceptable compromise.
     
  14. FJ12rydertoo

    FJ12rydertoo Member

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    I kind of felt the same way as Mark641: why change the gearing. However, the more I rode the VFR the more I wanted a lower first gear. For one thing it makes it easier to load in my toyhauler since first gear is now a bit lower. And I used to ride 2-up a lot, and a lower first gear makes leaving a stop on an uphill slope much easier. So I mainly was leaning toward a lower first gear, which means riding in a lower gear not an option.

    I was also concerned that my hiway gas mileage would drop, but the opposite has actually happened. Running a steady 70-75 mph will result in 45+ mpg, sometimes nearly 50 mpg. And that's actual mileage, not based on the bike's odometer. Before I changed the gearing that speed would result in about 43 mpg. Yeah, it's not much of a gain, but the point is that it's a gain and not a loss. I consistently get over 200 miles out of a tank now with almost no exceptions.

    But I also have no interest in changing over to a 520 chain and sprockets.
     
  15. sunofwolf

    sunofwolf New Member

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    I think the vfr is geared too high, it has trouble pulling in 6th gear in a head wind. It takes off to fast too. I was thinking that the new vfr 800 using a 325 chain might be a solution-does it fit 6th generation
     
  16. FJ12rydertoo

    FJ12rydertoo Member

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    If your VFR has trouble pulling top gear in a head wind, you're either heading into a tornado, or you're traveling too slowly in sixth gear. I've never noticed a lack of oomph in any gear, even before I changed the gearing. You've got trouble if you're having trouble pulling sixth gear in any kind of head wind.
     
  17. sunofwolf

    sunofwolf New Member

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    correct gearing in a vfr 800 would be 16-44. no gearing change is there.
     
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