[Bob Ramos]

I have seen a couple comments on YouTube reviews about how much our R7 would benefit from going up a couple teeth on the rear sprocket and/or going down one on the front sprocket…
Anyone tried it out yet or plan on doing it? I am curious what the benefits would be and if it is worth doing…. TIA for the feedback!

 

[xTheEc0]

"benefits" would be more torque for exchange in lower top speed
So even more wheelies

 

[bilet69]

Yes same here... wonder what anyone has run gearing wise on the race track so far

 

[Vansmack]

Yes same here... wonder what anyone has run gearing wise on the race track so far

I am not going bigger rear/smaller front and lose out on any top speed on the track, that gets topped out as it is. I may try up one in the front to see what it is like and it is easy to do. I do just do not want to affect the corner drive out torque at all. We'll see.

YTMMV - Your track mileage may vary

 

[research monkey]

Down 1 up 2 is pretty common across the board for a little more umph. Especially on the street as you probably won't be topping it out everywhere you go.

As for the track its highly dependent on the race track you're at. Does the track have any long straights? My home track and the tracks that I mostly go to don't really have long straights so i'll be going 15/44 (down 1 up 2). That was the same gearing I used on the FZ07 so i'm going to start there. If I end up going to say Autoclub speedway i'd probably go back down a couple in the rear as that front straight is really long.

 

[bilet69]

Down 1 up 2 is pretty common across the board for a little more umph. Especially on the street as you probably won't be topping it out everywhere you go.

As for the track its highly dependent on the race track you're at. Does the track have any long straights? My home track and the tracks that I mostly go to don't really have long straights so i'll be going 15/44 (down 1 up 2). That was the same gearing I used on the FZ07 so i'm going to start there. If I end up going to say Autoclub speedway i'd probably go back down a couple in the rear as that front straight is really long.

All great info and points

 

[Vansmack]

That's why I tagged YTMMV (YMMV), I have long straights, 1/2 to 2/3 mile coming out of a 50+ mph turns going into 100 mph turns, I don't want to reduce current op speed at all, I'd like to increase it. I'm not a wheelie guy so I don't want the front lifting without meaning to.

 

[Vansmack]

Looking at this more, and using a gearing calculator for what I would be interested in (up in the front, down in the rear) and available parts, I think it was only an 8.8% increase in top speed mathematically possible. There is only a one tooth change available on each end, +1 to 17 up front, -1 to 41 in the rear. There are only two straightaways where that would matter to me, for one only if they are running that particular configuration. So I'll stick with stock gearing and look at reducing rolling and spinning weight instead. Maybe help the bike spin up faster.

Monkey, that is the second track I am thinking of, CA Speedway. That and Buttonwillow config 26, which is slightly longer than the Fontana front. But CA Speedway anything under a 1000 gets eaten alive on that front stretch. When you are tapped out at 135 and you cross that finish line and a 1000 blows by you 30+ mph faster, forget about it, Just catch him/her in the turns.

Down 1 up 2 is pretty common across the board for a little more umph. Especially on the street as you probably won't be topping it out everywhere you go.

As for the track its highly dependent on the race track you're at. Does the track have any long straights? My home track and the tracks that I mostly go to don't really have long straights so i'll be going 15/44 (down 1 up 2). That was the same gearing I used on the FZ07 so i'm going to start there. If I end up going to say Autoclub speedway i'd probably go back down a couple in the rear as that front straight is really long.

Monkey, what other tracks? CA Speedway was the one I am thinking of for a long straight, only to be slightly out run by Buttonwillow Config 26, which that config is being run more. It's already bad enough in Fontana when you can't hit 135 and a 1000 blows by you at 30+ mph faster before you get to the start/finish line. Besides those two, Big Willow would be the only other for stretching top speed, but I am not a big fan of the track day org going there.

 

[research monkey]

Before you change your gearing, do you know what kind of times you do at say Buttonwillow on config 13? Not sure who else runs config 26 other than Trackdaz/CRA (counterclock). Chuckwalla Valley Raceway is the other track i'm referring to. Its pretty similar to BW config 13 as far as overall length and straightaways. Big Willow, Streets of Willow, Las Vegas Motor Speedway, Spring Mountain Motorsports Ranch etc. are some others. Out of all of those Autoclub and BW Config 26 have the longest straights though. Its been a while since i've been to LVMS or SMMR but I don't remember them being too long.

 

[Vansmack]

On 13, around 2:15. I ride in A but a bit conservative. I’m just having fun riding with my son. Well watching him ride, he’s sub 2. He kicks my ass on road, but I whip him off road. Yeah, not really worried about top speed at Chuck. Oddly, not at big Willow either. I can always hop on the R1 if I want that speed thrill, one session though and I’m done with that beast. Looking at the numbers with what parts are available I don’t want to change the stock gearing to longer, and it would only have been for the two tracks. I’m fine getting passed by liter bikes and most 600’s on those straights, I wouldn’t want to mess up the rest of the ride for that tiny gain there. And I don’t know that I want to go the other way with the gearing either, I like the way it rides in the canyons now, and it did work very well for me stock on the track. Then again, maybe just dropping a tooth in the front would be good overall. A bit more pull, a slight bit less top speed. So, who knows. Thanks!

 

[research monkey]

On 13, around 2:15. I ride in A but a bit conservative. I’m just having fun riding with my son. Well watching him ride, he’s sub 2. He kicks my ass on road, but I whip him off road. Yeah, not really worried about top speed at Chuck. Oddly, not at big Willow either. I can always hop on the R1 if I want that speed thrill, one session though and I’m done with that beast. Looking at the numbers with what parts are available I don’t want to change the stock gearing to longer, and it would only have been for the two tracks. I’m fine getting passed by liter bikes and most 600’s on those straights, I wouldn’t want to mess up the rest of the ride for that tiny gain there. And I don’t know that I want to go the other way with the gearing either, I like the way it rides in the canyons now, and it did work very well for me stock on the track. Then again, maybe just dropping a tooth in the front would be good overall. A bit more pull, a slight bit less top speed. So, who knows. Thanks!

Thats awesome! I agree with your conclusion. I think sticking with stock or even going down a tooth in the front or stock front and up 2 in the rear would still be alright for you.

 

[Vansmack]

Thats awesome! I agree with your conclusion. I think sticking with stock or even going down a tooth in the front or stock front and up 2 in the rear would still be alright for you.

Down in the front will require new countershaft nut along with the sprocket, but same chain can be used. Up in the rear will require a new chain as well as the sprocket. I already switched to a 520 set with the stock gearing on the R7, I may have ordered additional countershaft nuts, I'll have to look. Sometimes I wish it was simple castle nut and cotter pins still.