47 Tooth Rear

krolinked · July 30th, 2012, 08:50 PM

I just switched out my chain and popped in a 47 Tooth in the rear while I was at it. Also removed snorkel and shimmed the needles. And wow, this thing is a beast now. It roars to life and with the bigger sprocket it takes off like a mofo!
I've been riding like a hooligan ever since!

Jiggles · July 30th, 2012, 09:36 PM

You need a 13 in the front

krolinked · July 30th, 2012, 10:24 PM

I ordered one way back but they called and said they dont actually carry said sprocket so i opted for the 15 instead. It's still sitting in my room lol.

Jiggles · July 30th, 2012, 10:25 PM

Get a 13! It makes it a wheelie machine!!!

choneofakind · July 31st, 2012, 04:19 AM

47T rear is fun!

but you do know that 15/47 is nearly identical to the stock 14/45 right?

Posted via Mobile Device

Old Lemon · July 31st, 2012, 01:26 PM

If I were to change one sprocket, should I do 15t front or 47 rear?

Jiggles · July 31st, 2012, 01:27 PM

Quote:

Originally Posted by Old Lemon

If I were to change one sprocket, should I do 15t front or 47 rear?

Do you want to go faster or slower?

Old Lemon · July 31st, 2012, 01:31 PM

Faster

krolinked · July 31st, 2012, 01:33 PM

Take off, or Top Speed?

Old Lemon · July 31st, 2012, 01:36 PM

Take off

saxnbass · July 31st, 2012, 01:44 PM

Front down and rear up = better acceleration but lower top speed (and higher cruising RPM)
Front up and rear down = less acceleration but lower cruising RPM

Old Lemon · July 31st, 2012, 02:17 PM

Ok cool, sounds like I wanna change the rear sprocket as well

saxnbass · July 31st, 2012, 02:26 PM

Another note, up 3 in the rear is roughly equivalent to down 1 in the front (and all the vice versas of that)

alex.s · July 31st, 2012, 03:16 PM

uh. isnt stock front 15t?

Alex · August 1st, 2012, 09:46 PM

14t is stock

choneofakind · August 2nd, 2012, 04:35 AM

Quote:

Originally Posted by saxnbass

Another note, up 3 in the rear is roughly equivalent to down 1 in the front (and all the vice versas of that)

2. Not 3. 13/45 is equivalent roughly to 14/47
Posted via Mobile Device

saxnbass · August 2nd, 2012, 04:55 AM

Guess it's different for the 250 than on bigger bikes then, my bad.

choneofakind · August 2nd, 2012, 04:57 AM

No, they should act the same. Check gearing commander for both your cbr and a 250. I have known to be wrong with numbers before...
Posted via Mobile Device

July 30th, 2012, 08:50 PM	#1
krolinked Nerd Name: Chris Location: Tujunga Join Date: Mar 2012 Motorcycle(s): Ducati Hyperstrada Posts: 672	47 Tooth Rear I just switched out my chain and popped in a 47 Tooth in the rear while I was at it. Also removed snorkel and shimmed the needles. And wow, this thing is a beast now. It roars to life and with the bigger sprocket it takes off like a mofo! I've been riding like a hooligan ever since! __________________________________________________ It doesn't LOOK that steep. But you can go first...

July 30th, 2012, 09:36 PM	#2
Jiggles Jigglin' your Jiglets Name: Sean Location: San Jose, Ca Join Date: Jun 2011 Motorcycle(s): 2009 K1300S, 2013 Ninja 300, 2011 Ninja 250R, Faster than Unregistered's ninjette Posts: Too much. Blog Entries: 1 MOTM - Apr '13	You need a 13 in the front __________________________________________________ If the Ninja 250 doesn't have enough power for you, then you don't know how to ride it. AFM #676 Supersports are for n00bs

July 30th, 2012, 10:24 PM	#3
krolinked Nerd Name: Chris Location: Tujunga Join Date: Mar 2012 Motorcycle(s): Ducati Hyperstrada Posts: 672	I ordered one way back but they called and said they dont actually carry said sprocket so i opted for the 15 instead. It's still sitting in my room lol. __________________________________________________ It doesn't LOOK that steep. But you can go first...

July 30th, 2012, 10:25 PM	#4
Jiggles Jigglin' your Jiglets Name: Sean Location: San Jose, Ca Join Date: Jun 2011 Motorcycle(s): 2009 K1300S, 2013 Ninja 300, 2011 Ninja 250R, Faster than Unregistered's ninjette Posts: Too much. Blog Entries: 1 MOTM - Apr '13	Get a 13! It makes it a wheelie machine!!! __________________________________________________ If the Ninja 250 doesn't have enough power for you, then you don't know how to ride it. AFM #676 Supersports are for n00bs

July 31st, 2012, 01:33 PM	#9
krolinked Nerd Name: Chris Location: Tujunga Join Date: Mar 2012 Motorcycle(s): Ducati Hyperstrada Posts: 672	Take off, or Top Speed? __________________________________________________ It doesn't LOOK that steep. But you can go first...

July 31st, 2012, 04:19 AM	#5
choneofakind ninjette.org certified postwhore Name: . Location: . Join Date: Feb 2011 Motorcycle(s): . Posts: Too much. MOTM - Feb '13, Feb '14	47T rear is fun! but you do know that 15/47 is nearly identical to the stock 14/45 right? Posted via Mobile Device

July 31st, 2012, 01:26 PM	#6
Old Lemon Lays er down Name: Michael Location: Maryland Join Date: Apr 2012 Motorcycle(s): 2008 Lime green Ninja 250R Posts: A lot.	If I were to change one sprocket, should I do 15t front or 47 rear?

July 31st, 2012, 01:31 PM	#8
Old Lemon Lays er down Name: Michael Location: Maryland Join Date: Apr 2012 Motorcycle(s): 2008 Lime green Ninja 250R Posts: A lot.	Faster

July 31st, 2012, 01:36 PM	#10
Old Lemon Lays er down Name: Michael Location: Maryland Join Date: Apr 2012 Motorcycle(s): 2008 Lime green Ninja 250R Posts: A lot.	Take off

July 31st, 2012, 01:44 PM	#11
saxnbass ninjette.org certified postwhore Name: Eric Location: Nashville, TN Join Date: Oct 2011 Motorcycle(s): 2009 CBR600rr Posts: A lot. Blog Entries: 1	Front down and rear up = better acceleration but lower top speed (and higher cruising RPM) Front up and rear down = less acceleration but lower cruising RPM __________________________________________________ My Mods \| My Bike's Ninjette Thread

July 31st, 2012, 02:17 PM	#12
Old Lemon Lays er down Name: Michael Location: Maryland Join Date: Apr 2012 Motorcycle(s): 2008 Lime green Ninja 250R Posts: A lot.	Ok cool, sounds like I wanna change the rear sprocket as well

July 31st, 2012, 02:26 PM	#13
saxnbass ninjette.org certified postwhore Name: Eric Location: Nashville, TN Join Date: Oct 2011 Motorcycle(s): 2009 CBR600rr Posts: A lot. Blog Entries: 1	Another note, up 3 in the rear is roughly equivalent to down 1 in the front (and all the vice versas of that) __________________________________________________ My Mods \| My Bike's Ninjette Thread

July 31st, 2012, 03:16 PM	#14
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	uh. isnt stock front 15t? __________________________________________________

August 1st, 2012, 09:46 PM	#15
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	14t is stock __________________________________________________ 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)

August 2nd, 2012, 04:55 AM	#17
saxnbass ninjette.org certified postwhore Name: Eric Location: Nashville, TN Join Date: Oct 2011 Motorcycle(s): 2009 CBR600rr Posts: A lot. Blog Entries: 1	Guess it's different for the 250 than on bigger bikes then, my bad. __________________________________________________ My Mods \| My Bike's Ninjette Thread

August 2nd, 2012, 04:57 AM	#18
choneofakind ninjette.org certified postwhore Name: . Location: . Join Date: Feb 2011 Motorcycle(s): . Posts: Too much. MOTM - Feb '13, Feb '14	No, they should act the same. Check gearing commander for both your cbr and a 250. I have known to be wrong with numbers before... Posted via Mobile Device

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
415 Chain Sprockets- 53 tooth & 55 tooth	Racingredhead	Motorcycle-related	7	July 8th, 2014 03:36 PM