advice: sprockets

skip · April 23rd, 2014, 04:24 PM

Are car bon steel sprockets reliable also how many teeth should the sprockets be

cuong-nutz · April 23rd, 2014, 04:33 PM

Majority of sprockets are made of carbon steel unless of course you go with Aluminum.

Stock front sprocket is 14t and rear is 45t. Most folks get a 15t front sprocket to reduce overall rpms so the bike is not so buzzy from high cruising speeds.

alex.s · April 23rd, 2014, 05:36 PM

carbon steel is good, but hydrogen steel is sooo much lighter!

CC Cowboy · April 23rd, 2014, 05:42 PM

Quote:

Originally Posted by alex.s

carbon steel is good, but hydrogen steel is sooo much lighter!

So is car born dioxide.

skip · April 23rd, 2014, 05:44 PM

How about a good chain and what's the length.if I go 15 on the front sprocket do I have to go bigger or smaller on the rear sprocket

alex.s · April 23rd, 2014, 05:45 PM

D.I.D. makes good chains. about the length, i'd say about 3 feet or so.

broilmebk · April 24th, 2014, 11:49 AM

Quote:

Originally Posted by alex.s

D.I.D. makes good chains. about the length, i'd say about 3 feet or so.

Quote:

Originally Posted by skip

How about a good chain and what's the length.if I go 15 on the front sprocket do I have to go bigger or smaller on the rear sprocket

Stock is 106 links. It will fit 15/45 setup.

skip · April 24th, 2014, 01:43 PM

Quote:

Originally Posted by cuong-nutz

Majority of sprockets are made of carbon steel unless of course you go with Aluminum.

Stock front sprocket is 14t and rear is 45t. Most folks get a 15t front sprocket to reduce overall rpms so the bike is not so buzzy from high cruising speeds.

So if I go 15t front sprocket what do I go for rear sprocket

Alex · April 24th, 2014, 01:46 PM

Many people leave the rear at 45 teeth, and only change the front from 14 to the 15. Some people have gone for taller gearing by using a few less teeth on the rear, but it's not as common.

skip · April 24th, 2014, 01:47 PM

Dies any one have trouble adjusting da chain every time I loosen da axle the bracket with the marks moves how do I get it adjusted properly

skip · April 24th, 2014, 01:50 PM

Quote:

Originally Posted by Alex

Many people leave the rear at 45 teeth, and only change the front from 14 to the 15. Some people have gone for even taller gearing by using a few less teeth on the rear, but it's not as common.

Thank you very much which would you recommend for the front 14 or 15t

Alex · April 24th, 2014, 01:51 PM

Make sure to check out the sticky thread at the top of the tech section:

Directory of all 250R DIY threads on Ninjette.org

There's a pretty decent chain adjustment / wheel alignment thread there:

DIY- Chain Adjustment and Rear Wheel Alignment

The pics are borked in the first few posts, but if you scroll down there are more pics and instructions to clarify if things are fuzzy about the first post.

Alex · April 24th, 2014, 01:52 PM

Quote:

Originally Posted by skip

Thank you very much which would you recommend for the front 14 or 15t

I'd probably go with a 15 if I was changing the sprocket out. I wouldn't change a perfectly functioning 14 out for a 15 for the performance difference, but if it was worn and I needed a new one anyway I'd likely go with the 15.

broilmebk · April 24th, 2014, 03:45 PM

Quote:

Originally Posted by Alex

Many people leave the rear at 45 teeth, and only change the front from 14 to the 15. Some people have gone for taller gearing by using a few less teeth on the rear, but it's not as common.

I went down to 44 in the rear.

Quote:

15/44 vs 15/45
I find the 15x44 is a good compromise, and it's perfect for 70-80mph riding. I have 2 bikes - One is 15x45 and the other 15x44. The 15x45 is (very marginally) quicker through the gears, pulls harder in top gear at terminal speed / has a higher top speed, but the trade-off is higher rpm on the highway. Either works just fine for me. I run the higher gear on the bike which I use for touring. However, I've also done local club rides (all 600cc+) in the twisties using the 15x44 bike and had no problems whatsoever (the trick to club rides on an underpowered bike is to stay as close to the front as possible to avoid the inchworm effect).

Quote:

Originally Posted by skip

Dies any one have trouble adjusting da chain every time I loosen da axle the bracket with the marks moves how do I get it adjusted properly

That thing is useless.

stubshaft · April 24th, 2014, 05:31 PM

15/43 worked for me and I can use the stock chain.

skip · April 28th, 2014, 07:41 PM

Quote:

Originally Posted by Alex

I'd probably go with a 15 if I was changing the sprocket out. I wouldn't change a perfectly functioning 14 out for a 15 for the performance difference, but if it was worn and I needed a new one anyway I'd likely go with the 15.

If I go 15 do I keep the rear sprocket 45 and will the stock chain fit and will this raise my mpg

skip · April 28th, 2014, 08:02 PM

Will A 15t Sprocket And A Rear 45t Raise My mpg AAnd what Chain Will fit

csmith12 · April 28th, 2014, 08:42 PM

The stock 106 link chain will fit and will it give you some mpg? Maybe or maybe not, depends on your wrist. Some riders have reported an increase, I myself... didn't notice squat.

April 23rd, 2014, 04:24 PM	#1
skip ninjette.org member Name: skip Location: So cal Join Date: Jan 2012 Motorcycle(s): 2009 250r Posts: 126	advice: sprockets Are car bon steel sprockets reliable also how many teeth should the sprockets be

April 23rd, 2014, 04:33 PM	#2
cuong-nutz RIP Alex Name: Cuong Location: Houston, TX Join Date: Apr 2011 Motorcycle(s): '10 250r, '09 265r Posts: A lot. Blog Entries: 2	Majority of sprockets are made of carbon steel unless of course you go with Aluminum. Stock front sprocket is 14t and rear is 45t. Most folks get a 15t front sprocket to reduce overall rpms so the bike is not so buzzy from high cruising speeds. __________________________________________________ HalfFast Racing Team Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days
	1 out of 1 members found this post helpful.

April 23rd, 2014, 05:36 PM	#3
alex.s wat Name: wat Location: tustin/long beach Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much. Blog Entries: 5 MOTM - Oct '12, Feb '14	carbon steel is good, but hydrogen steel is sooo much lighter! __________________________________________________

April 23rd, 2014, 05:45 PM	#6
alex.s wat Name: wat Location: tustin/long beach Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much. Blog Entries: 5 MOTM - Oct '12, Feb '14	D.I.D. makes good chains. about the length, i'd say about 3 feet or so. __________________________________________________

April 24th, 2014, 01:46 PM	#9
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	Many people leave the rear at 45 teeth, and only change the front from 14 to the 15. Some people have gone for taller gearing by using a few less teeth on the rear, but it's not as common. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

April 23rd, 2014, 05:44 PM	#5
skip ninjette.org member Name: skip Location: So cal Join Date: Jan 2012 Motorcycle(s): 2009 250r Posts: 126	How about a good chain and what's the length.if I go 15 on the front sprocket do I have to go bigger or smaller on the rear sprocket

April 24th, 2014, 01:47 PM	#10
skip ninjette.org member Name: skip Location: So cal Join Date: Jan 2012 Motorcycle(s): 2009 250r Posts: 126	chain Dies any one have trouble adjusting da chain every time I loosen da axle the bracket with the marks moves how do I get it adjusted properly

April 24th, 2014, 01:51 PM	#12
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	Make sure to check out the sticky thread at the top of the tech section: Directory of all 250R DIY threads on Ninjette.org There's a pretty decent chain adjustment / wheel alignment thread there: DIY- Chain Adjustment and Rear Wheel Alignment The pics are borked in the first few posts, but if you scroll down there are more pics and instructions to clarify if things are fuzzy about the first post. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

April 24th, 2014, 05:31 PM	#15
stubshaft Rode with the Dinosaurs.. Name: Joe Location: middle of the pacific Join Date: Nov 2013 Motorcycle(s): '08 Ninja 250 Posts: 486	15/43 worked for me and I can use the stock chain. __________________________________________________ *Fortune favors the brave!*

April 28th, 2014, 08:02 PM	#17
skip ninjette.org member Name: skip Location: So cal Join Date: Jan 2012 Motorcycle(s): 2009 250r Posts: 126	advice Will A 15t Sprocket And A Rear 45t Raise My mpg AAnd what Chain Will fit

April 28th, 2014, 08:42 PM	#18
csmith12 The Corner Whisperer Name: Chris (aka Reactor) Location: Northern KY Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much. MOTY 2015, MOTM - Nov '12, Nov '13	The stock 106 link chain will fit and will it give you some mpg? Maybe or maybe not, depends on your wrist. Some riders have reported an increase, I myself... didn't notice squat. __________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School

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