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Discussion Starter #1
I'm looking at putting a 42 tooth rear sproket on my 03. Currently I'm running a stock 50. I can get to 50/60 but with a lot of whinning. Wanting to read facts from those that have tried or use this setup?

Thanks
 

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Depends on what you plan to ride. I went to a 52 tooth. But I ride more off road. My bike came with a 45 and I didn't like it for off road riding in my area.
 

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This fellow (Craigerk) seems real happy: "I ride street only only, going to work, in reign, leisurely, didn't think about throwing in there what I ride. If its not street its just going down a rail road bed that's in the same direction for a change of scenery. I have a 14/42 set up with a DG pipe, cone filter and stock jetting. I didn't get it new its an 05. But when I got it the only thing the guy had changed was the rear sprocket to a 47 but I wanted more top end so I swapped. Joke that helps and clarify. glad you don't want proof cause like I said i'm not good at doing wheelies and a big guy doing a wheely on a small Ish bike doesn't even look good ha ha "



http://tw200forum.com/index.php?/topic/4709-whats-wrong-with-my-1447/
 

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I'm happy with the 14/44 set up. My primary purpose is daily street:trail 90%:10%. I'd guess that if you are doing street riding and have relatively flat land, you will be happy.



dan
 

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Discussion Starter #6
Thanks you'll, I appreciate the insight. Will give it a lash and let you know how these hills and graveled roads do with the 14/42 setup.

Larry
 

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Personally, dropping all the way down to a 42 would not be your best choice... You indicate that you like to do some trails. To me, a 42 will impact you off-road a lot. Seems what in effect you are doing is pretty much giving up your 5 gear and as well making your 1st almost a pavement only gear. If you use the gear calculator you will see that a 45 will still give you an ok rpm in 4th for that 60mph. As well, your first gear will be a bit more capable in the dirt than with the 42. Those smaller rear sprockets did not work for me as I don't do much high speed travel.



I'm not into selling stuff, but my try with a 45 did not last more than a couple of hundred miles. I will sell you the 45 tooth sprocket hanging from my rafter for $10 plus shipping. Gerry
 

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I agree with Gerry. I run a 47 but I do alot of trail riding. Go with a 45. When I got my bike it came with a box of extra parts. a 45 tooth sprocket and chain was in it. Maybe PO tried it and didn't like it.
 

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Discussion Starter #9
Well I'll take you up on that offer. I put the 42 on today and rode several miles. THERE IS NO GRUNT!!!! Top end is fine but I'm too old to be too concerned about being first. Tell me where you want me to send the $10.00. I've got this weekend and next to ride then I get my left knee replaced. I understand I'll be out a day or two they say?

Thanks for the help you'll.

Larry
 

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Well I'll take you up on that offer. I put the 42 on today and rode several miles. THERE IS NO GRUNT!!!! Top end is fine but I'm too old to be too concerned about being first. Tell me where you want me to send the $10.00. I've got this weekend and next to ride then I get my left knee replaced. I understand I'll be out a day or two they say?

Thanks for the help you'll.

Larry


Look at you all talking to folks on the Forum! Figured Hell would freeze over before you quit lurking about in bushes! Proud of you! Looking forward to this weekend!
 

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Ok Larry, I will find out the shipping from the Post Office tomorrow. I will then send you a personal message with the total and my address. You will know you have a message if you look to the top right of the forum screen where your name is. There will likely be a number suggesting you have 1 (2,3,4...) messages that you 'need' to read. Click on the number, read the message and then reply as if the message was a post thread.



All the sprockets I run are manufactured by JT sprockets. I have always been very happy with the quality, however, they have a recess/thinner portion where the sprocket bolts to the hub. This will prevent the stock bolts from tightening down all the way as they will now not be threaded enough. I simply when to 3/8" grade 8 SAE bolts. You can use washers as spacers on the stock bolts as well. I have done it both ways without issue.



Remember as well, I am not a fan of the 45 tooth sprocket as I think it may still have you geared to high. Importmech uses a 47 and personally that is as small as I would consider, but the decision is yours. This is not the sprocket you would be buying, just shows you the center portion. Gerry



 

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Well Larry, likely you're going to think I sell used cars for a living (nothing wrong with that actually). Went out into the shop this morning in my jammies to pull the sprocket from the nail in the rafter. My intention was to wipe any chain lube off and lay it on the kitchen counter so I would not forget to take it to the Post Office for weighing. I know it seems hard to believe me, but sometimes I forget things. To counter this possibility, When I think of what I need to do, I act promptly and do something that will jog my memory.



Got the sprocket and started wiping. JT-CT-45, well that makes sense for a 45 tooth sprocket wright? Well, not completely. As I moved my rag a bit more, and my eyes focused, some additional text indicates that a CT-45 sprocket actually has 47 teeth...... It just so happens this is what I mentioned in the above post as what you really need. Do you feel set-up or what
.



Seems the same thing happened last year when a forum member stopped by while on an adventure from New Mexico to Colorado. He was running a 45 and things were pretty worn out. I said no problem, as I have got a 45 in the shop. Yes, I have a CT-45 but it is a 47 tooth sprocket.



I certainly have no problem parting with it, but won't do anything till I hear back from you. Geeezz. Gerry
 

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Discussion Starter #13
Geezz,

I'm a Peddler by vocation and I can tell you are the type of person I would believe. Yes I would like to have the 45. I went out again this afternoon and the little 42 did OK except for either end. Deffinately not what I need for these mountains/hills & hollors around here. Top-end was 75 when I quit. The GRUNT was absolutely gone. Like I mentioned last nite the only time I want to be first these days is Supper and one or two other things, letting the younger folks run out front is OK with me. It also cuts down on running into spider webs. My mailing address is Larry Curry - 416 Cumberland Dr. - Huntsville, Al 35803. I will send you the money as soon as I have your address.

Thanks partner

Larry
 

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Gerry, funny that you mention your sprocket saying C45 yet being a 47 tooth sprocket. I looked in that spare parts box I got with my bike and the sprocket (which looks quite fresh) says C45 but then the other numbers say jtr1842-42. I counted the teeth.....42 teeth. There is even a hand made label on chain box that is tied to sprocket that says chain for 45 tooth sprocket. I think the PO thought it was a 45 tooth sprocket too......It has so little wear on the sprocket I'll bet he hated it and changed to the 47 tooth it has when I bought it. If I ever change sprockets I would go with more teeth, not less. (although I am happy with my current 47 tooth)
 

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Is it CT-45 or C-45?? C-45 might be the type of steel used (http://www.matbase.com/material/ferrous-metals/high-grade-steel/c45/properties)



Everyone has different experiences with sprockets. I tried a 44 or a 45 (can't quite remember) and I didn't like it, would not pull or hold at high speeds. I ended up at a 47 tooth. I liked it for 1st gear and pulled alright on the top end but I kinda liked the 50 more for the top end. I cruised at 70mph to work. I had no reservations about winding out the engine, many others do. I got a pretty constant 62mpg driving like that.
 

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Geezz,

I'm a Peddler by vocation and I can tell you are the type of person I would believe. Yes I would like to have the 45. I went out again this afternoon and the little 42 did OK except for either end. Deffinately not what I need for these mountains/hills & hollors around here. Top-end was 75 when I quit. The GRUNT was absolutely gone. Like I mentioned last nite the only time I want to be first these days is Supper and one or two other things, letting the younger folks run out front is OK with me. It also cuts down on running into spider webs. My mailing address is Larry Curry - 416 Cumberland Dr. - Huntsville, Al 35803. I will send you the money as soon as I have your address.

Thanks partner

Larry
I would sell you the 45 if I had it, but for some reason my CT-45 is in fact a 47 tooth sprocket. I will still go and weigh it Monday, but need you to confirm that you feel comfortable buying a 47 tooth instead of the 45 that I thought it was. Sorry for the confusion. Gerry
 

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I would sell you the 45 if I had it, but for some reason my CT-45 is in fact a 47 tooth sprocket. I will still go and weigh it Monday, but need you to confirm that you feel comfortable buying a 47 tooth instead of the 45 that I thought it was. Sorry for the confusion. Gerry


If you happen to end up with 2 47s I'll take one of them.
 

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Seems shipping will be about $5.50. I do have two of these and I am not sure why. As indicated, one is very slightly used which I offered for $10. The other is brand new and I will have to adjust the price up abit to $14 plus shipping. Gerry
 
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