I used a 118 link chain and 14,15, or 16 fronts with 48 rear for the more than 7 years I had a 690. 16/48 is same ratio as OEM 15/45. I plan to run the same setup on my 701 Enduro with the exception of the 15 tooth front which I almost never used.
Here's a web site I hacked together to produce rpm/speed tables from gearing information. All of the info is stored in the URL so you can bookmark different gearing setups. The final drive ratio is the last entry, 14r48 in this example. Use your browser's editing keys to change the parameters to show the speeds at various RPMs.
Yea, for the R6 it's really nice and makes the bike a lot more streetable. It's got a nice big flat spot right in the middle of the powerband that the bigger sprocket helps compensate for.The 600RR is still stock because Honda figured out how to make decent torque in the lower revs, even with a little 600cc motor. I remember it being a big to-do in 07 or 08 when Honda made the changes, and I absolutely LOVE riding that bike. Sometimes when I saddled up the R6 again after being on the CBR for a while I think something must be wrong with it, because why wont it accelerate? Then you get 8-9K and the power starts to come on. Just how that motor was built. I added 10 teeth on the rear sprocket.
Gearing again, sorry chaps (Preview) my newly acquired 2005 ttr is geared fine for the road, 75mph + but it seems very tall on the trails,current sprockets are 14/44, I would like to try the 14/52 combo that seems to be a good compromise, but the more I read about it the more confused I'm getting, what size chain would I need?, taking into acco.
The rear sprocket is huge. Wheelies off the throttle now if I pin it too quickly in 1st 2nd or 3rd. I top out at 100 mph on the rev limiter, maybe. At 70mph I'm revving it pretty good at 8k rpm. Before, I'd be doing 100115 easily at 8k rpm.
![116 116](/uploads/1/2/5/3/125392222/640012277.webp)
![Ktm with a 116 link chain what gearing diagram Ktm with a 116 link chain what gearing diagram](/uploads/1/2/5/3/125392222/258876949.jpg)
So basically, I can't really speed anymore (I'm fine with that).Stock final drive:16/47116 link chainNew final drive:16/57126 link chainGoing up in the rear is the same as dropping in the front.Going up in the front is the same as dropping in the rear.Bigger rear = more torque to the wheel. Smaller rear = Wheel spins faster.Bigger front = faster wheel spin. Smaller front = more torque to the wheel.It's okay to add or remove a tooth from the front (+ or - 1 from stock), but generally you want to do a combination of front/rear to get the correct gearing (like -1 front + 2 or 3 rear). If the front is too small your chain is going to wear out rather quickly.Also your speedo will be way off, you'll have to use TuneECU to correct it.Additionally, you'll either need to add or drop links to your chain to get the correct length. If you're unsure, get one just a bit longer than you need and remove the amount of links you need.