TT250 Sprockets - Page 3

2LZ · 07-19-2016, 10:54 AM

Quote:

Originally Posted by pcspecialist

maybe 17t is a part number for 15 teeth?

As luck would have it, after counting the teeth last night, it really is 17! WOO HOO!
I can't wait for that dang 47T rear to come in... Hasn't shipped yet!!!!

oddthought · 07-19-2016, 11:26 AM

Quote:

Originally Posted by 2LZ

As luck would have it, after counting the teeth last night, it really is 17! WOO HOO!
I can't wait for that dang 47T rear to come in... Hasn't shipped yet!!!!

I just called CSC this morning and they'll ship a 17T out to me today. I should have it by this weekend and I'll just have to put some serious miles on! Er, kilometers... Or kilomiles, which is an excellent (if somewhat misleading) unit of measurement.

rojo_grande · 07-19-2016, 08:36 PM

17T for me as well.

Rojo

kohburn · 07-20-2016, 06:26 AM

did you try installing the JT sprocket yet?

2LZ · 07-20-2016, 10:19 AM

Quote:

Originally Posted by kohburn

did you try installing the JT sprocket yet?

Just checked this morning and it still hasn't shipped. :-(

Just in case of a hang-up, They're not getting mine to measure until I get theirs in the mail...... I really don't want to finish the TT project until I get that sprocket! They've always shipped quickly to me in the past. Maybe they have to stamp this one out or something. I'll check with them today.

kohburn · 07-20-2016, 02:10 PM

maybe i'll pull my rear wheel tonight to see if the 47 will work.

oddthought · 07-20-2016, 02:59 PM

Quote:

Originally Posted by kohburn

maybe i'll pull my rear wheel tonight to see if the 47 will work.

Wait, do you have a 47T sitting around? If so, that'd be great! I'd imagine that it should work even without the offset. If it came right down to it, like was mentioned earlier, a spacer ought to do the trick.

2LZ · 07-20-2016, 03:04 PM

Quote:

Originally Posted by oddthought

If it came right down to it, like was mentioned earlier, a spacer ought to do the trick.

Not optional. It appear that the center of the sprocket is held on by a big "C" clip.
I'll get a true measure on the offset tonight now that it's off the bike. I doubt that a 4-5mm offset will effect anything with the length of the chain.

oddthought · 07-20-2016, 03:07 PM

Quote:

Originally Posted by 2LZ

Not optional. It appear that the center of the sprocket is held on by a big "C" clip.
I'll get a true measure on the offset tonight now that it's off the bike. I doubt that a 4-5mm offset will effect anything with the length of the chain.

Ah, I see. I guess I haven't looked that closely at this bike's sprocket system.

kohburn · 07-20-2016, 08:31 PM

it would only be a temporary solution. misaligned chains wear out faster.

Ariel Red Hunter · 07-21-2016, 09:07 AM

Quote:

Originally Posted by kohburn

it would only be a temporary solution. misaligned chains wear out faster.

And sprockets as well.

kohburn · 07-23-2016, 02:27 PM

ok so i installed the 47 tooth sprocket today. bunch of info to follow...

-there is no cushion on the tt hubs, the bolts holding the sprocket on thread right into the aluminum, makes the spring clip ring unnecessary.

-the jt sprockets center hole is about 1mm too small to fit all the way down and seat where the stock sprocket does, instead it fits on the end right up to the slot for the spring clip ring.

- the stock sprocket can flip upside down to be a spacer for the jt sprocket. in this configuration both sprockets can be used by loosening the chain and moving it to the other sprocket. (dual range final drive).

-with the chain on the outer sprocket (should be the same offset as stock) if the chain is properly aligned then its center line is about 1.5" to the right of the front wheels centerline - resulting in a slight crab walk.

-with the chain on the inner sprocket. (offset reversed) i think the crab walk will be to the other side.

-I believe that with the jt sprocket center hole sanded out to enlarge it just enough to slide on that it will be in the proper offset when flush.

-with the 47 tooth i hit 63 mph think i'll order the 43 tooth

kohburn · 07-23-2016, 02:30 PM

2LZ · 07-26-2016, 12:20 PM

Excellent news kohburn! Thanks! I have no idea how I missed these posts... Great info. I like the old "Honda Trail 90" gearing option!

63 mph is fine for what we're looking for. Mrs. 2LZ doesn't want top lose all the low speed trail crawling, just in case. I think in her mind, if she wants to go fast, she'll take her Victory. ;-)
Keep us posted on the 43 tooth. I'm interested.

SeerAtlas · 07-26-2016, 12:38 PM

Quote:

Originally Posted by kohburn

This is tooo cool

question is how big of difference we can get in the two sprocket setup. say a15 up front with the stock 50, then switch over to say a 43..would give a pretty good spread

how bout a 14 up front with a 55 rear bolted to a 40 or so? hmmm may have to play with this a bit.

07-19-2016, 08:36 PM	#33
rojo_grande Join Date: Jun 2015 Location: Weston, CO & Sangre de Cristos Posts: 240	17T for me as well. Rojo __________________ '15 RX3 (Rojo's) '15 RX3 (marzhere's) '16 TT250
	1

07-20-2016, 06:26 AM	#34
kohburn Join Date: Dec 2015 Location: Coastal NC Posts: 537	did you try installing the JT sprocket yet? __________________ -whatever you do, just be awesome. - 2008 Kawasaki Versys - 2016 CSC TT250
	0

07-20-2016, 02:10 PM	#36
kohburn Join Date: Dec 2015 Location: Coastal NC Posts: 537	maybe i'll pull my rear wheel tonight to see if the 47 will work. __________________ -whatever you do, just be awesome. - 2008 Kawasaki Versys - 2016 CSC TT250
	2

07-20-2016, 08:31 PM	#40
kohburn Join Date: Dec 2015 Location: Coastal NC Posts: 537	it would only be a temporary solution. misaligned chains wear out faster. __________________ -whatever you do, just be awesome. - 2008 Kawasaki Versys - 2016 CSC TT250
	0

07-23-2016, 02:27 PM	#42
kohburn Join Date: Dec 2015 Location: Coastal NC Posts: 537	ok so i installed the 47 tooth sprocket today. bunch of info to follow... -there is no cushion on the tt hubs, the bolts holding the sprocket on thread right into the aluminum, makes the spring clip ring unnecessary. -the jt sprockets center hole is about 1mm too small to fit all the way down and seat where the stock sprocket does, instead it fits on the end right up to the slot for the spring clip ring. - the stock sprocket can flip upside down to be a spacer for the jt sprocket. in this configuration both sprockets can be used by loosening the chain and moving it to the other sprocket. (dual range final drive). -with the chain on the outer sprocket (should be the same offset as stock) if the chain is properly aligned then its center line is about 1.5" to the right of the front wheels centerline - resulting in a slight crab walk. -with the chain on the inner sprocket. (offset reversed) i think the crab walk will be to the other side. -I believe that with the jt sprocket center hole sanded out to enlarge it just enough to slide on that it will be in the proper offset when flush. -with the 47 tooth i hit 63 mph think i'll order the 43 tooth __________________ -whatever you do, just be awesome. - 2008 Kawasaki Versys - 2016 CSC TT250
	2

07-23-2016, 02:30 PM	#43
kohburn Join Date: Dec 2015 Location: Coastal NC Posts: 537	__________________ -whatever you do, just be awesome. - 2008 Kawasaki Versys - 2016 CSC TT250
	5

07-26-2016, 12:20 PM	#44
2LZ Join Date: Mar 2010 Location: Volcano, Ca Posts: 7,105	Excellent news kohburn! Thanks! I have no idea how I missed these posts... Great info. I like the old "Honda Trail 90" gearing option! 63 mph is fine for what we're looking for. Mrs. 2LZ doesn't want top lose all the low speed trail crawling, just in case. I think in her mind, if she wants to go fast, she'll take her Victory. ;-) Keep us posted on the 43 tooth. I'm interested. __________________ "Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350
	1