seeking gearing advice.

General forum on frames, brakes, suspension, wheels and tires

Moderator: rztom

Post Reply
Message
Author
dauer
Posts: 25
Joined: Wed May 21, 2014 10:19 pm
Location: Narragansett, RI

seeking gearing advice.

#1 Post by dauer » Sat Sep 13, 2014 9:06 am

Hi folks. I'm seeking some recommendations on what gearing to run. At the moment I'm running a 15/40t setup compliments of the PO. I recently dropped a tooth in the front to 14 but that was too drastic of a change so a swapped the 15 back on. I feel that's too long legged so I'm assuming conventional wisdom would tell me time to start going up in the rear. Am I correct? The thing I'm a little perplexed about is how high the stock gearing is. Assuming that 1t front=2.33t rear I would think my current setup is already much lower than stock but it sure doesn't feel that way. Any thoughts?

hondaror
Posts: 2828
Joined: Mon Mar 03, 2014 8:44 pm
Location: Alberta, Canada

Re: seeking gearing advice.

#2 Post by hondaror » Sat Sep 13, 2014 12:10 pm

Frankly I'd stick with stock gearing for the street. 17-40. Easier on the chain and sprockets. Just gear for the track. This from an ex racer/mechanic.

I guess I should have asked what your goals were?
Rory
2 1984 RZ350s
1985 RZ350
9 1986-1990 RZ350s
2000 ST2
2005 749
2005 749 with 999 engine

mkane
Posts: 921
Joined: Wed Feb 20, 2013 11:43 pm
Location: Cloverdale, CA

Re: seeking gearing advice.

#3 Post by mkane » Sat Sep 13, 2014 12:13 pm

Really depends what type of riding you prefer. With the gearing we use it's 10mph per 1000 revs in 6th. No freeway.

dauer
Posts: 25
Joined: Wed May 21, 2014 10:19 pm
Location: Narragansett, RI

Re: seeking gearing advice.

#4 Post by dauer » Sat Sep 13, 2014 1:56 pm

mkane wrote:Really depends what type of riding you prefer. With the gearing we use it's 10mph per 1000 revs in 6th. No freeway.
That's what the ratio was with the 14 up front which was a bit low for my liking as unfortunately with the lack of decent roads around here I find myself on the freeway frequently. However with the 15 on I feel it's too tall. Now do I bump up to a 41 in the rear to lower it slightly but not quite as much as dropping to a 14 had accomplished?

greg_banshee
Posts: 20
Joined: Sat Apr 25, 2009 4:21 pm
Location: Nova Scotia, Canada

Re: seeking gearing advice.

#5 Post by greg_banshee » Sun Sep 14, 2014 5:21 pm

Yes you'll have to go up one or maybe two on the rear sprocket. If you go up three on the rear it'll be the same as going down one on the front.



1990 RZ350
-Spec ll exhaust
-VFORCE 3 reeds
-Chariot billet intakes
-TM28 Mikuni flat slides
-UNI pods
-Mild port work

2000 Banshee
-421cc cub
-Vito's crank
-Shearer SB
-VFORCE 3 reeds
-Chariot billet intakes
-TM34 Mikuni flat slides
-UNI pods
-Shearer slingshot lockup clutch

2009 Kodiak 450
-Big Gun Eco exhaust
-AMR stage 3 rev box
-UNI filter
-EPI clutch kit
-1mm shim
-Mudlite XL's
My toys: 1999 Banshee (4mm stroker 5mm long rod) with lots of other goodies.
1990 RZ350 all stock except K&N Pods.
1998 Blaster (girlfriends machine i built for her)

hondaror
Posts: 2828
Joined: Mon Mar 03, 2014 8:44 pm
Location: Alberta, Canada

Re: seeking gearing advice.

#6 Post by hondaror » Sun Sep 14, 2014 6:52 pm

Start at a stock setting, 17-40 and then play with the rear, going larger. What is your goal?
Rory
2 1984 RZ350s
1985 RZ350
9 1986-1990 RZ350s
2000 ST2
2005 749
2005 749 with 999 engine

dauer
Posts: 25
Joined: Wed May 21, 2014 10:19 pm
Location: Narragansett, RI

Re: seeking gearing advice.

#7 Post by dauer » Wed Sep 17, 2014 7:57 pm

Thanks for the advice guys. With my current gearing setup the revs are at 5800 rpm when doing 70 mph in top gear, with the 14t the bike was at 7000 rpm at 70 mph in top. I'd like to be in between that so I'm going to put a 41t on the rear and go from there. Thanks.

vmxwinn
Posts: 469
Joined: Sat Jan 28, 2012 3:39 pm
Location: Danville CA

Re: seeking gearing advice.

#8 Post by vmxwinn » Thu Sep 18, 2014 2:31 am

I run 16/44 and quite like it. Not that I spend lots of time on the freeway but do half hour plus stints and it is not to buzzy. At 70 I'm spinning 6200+/-rpm

Like the response in the canyons better.
85 Y/B, Toomey pipes, PWK 28's, JJH Needle #2, 45 pilot jet, 145 main, Pods, VForce 4 reed blocks, +3 ignition, Milled head 1.1mm squish, R6 Shock, Progressive

Many Vintage MX Bikes, 03 ZRX1200R, 86 Moto Guzzi 1000 Le Mans MK IV, 86 VFR 750, 74 GT 550

dauer
Posts: 25
Joined: Wed May 21, 2014 10:19 pm
Location: Narragansett, RI

Re: seeking gearing advice.

#9 Post by dauer » Wed Sep 24, 2014 8:17 pm

vmxwinn wrote:I run 16/44 and quite like it. Not that I spend lots of time on the freeway but do half hour plus stints and it is not to buzzy. At 70 I'm spinning 6200+/-rpm

Like the response in the canyons better.
That sounds like a ratio I'd be partial to. I'm going to bump up to 41 in the rear and go from there. Just did a track day yesterday and could've def used a little more low-end, had a blast and showed some much faster more modern machinery my tail lights (taped over of course) none the less.

Post Reply