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My Chain and Sprockets are worn smooth out and I need to replace them so I've been thinking about going from 50t to 47t to gain some top end speed zipping around town. I would like to keep some of my low end torque for trail riding but would still like a little more top end. Is the 47t sprocket the right choice?
Thanks all of ya





Z-Dub on a T-Dub
 

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really i would opt to not change my sprocket.

in my opinion i dont think the TW-200 is made to go fast.

you cant risk losing the little bit of offroad power, that you might need to climb that last hill on the trail
 

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You'll gain no top end with a sprocket change because the engine won't pull taller sprockets. I've ridden the Ozarks with sprocket sets ranging from 14/54 to 15/47. 14/50 or 15/54 seem best all around for combined city and trail.
 

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I just replaced my worn out chain and sprockets with a did o-ring and 14/47 sprockets. I like it a little better than stock. You should notice a little drop in rpm at highway speeds. Anytime you change gearing it will effect your rpm at a given speed but if you go to much it will kill your power and put more of a load on the engine. 55mph feels about like 50mph used to and the first gear is very low anyway. You can tell a slight difference in first but not much and now I can actually use first on the street. Climbing hills hasnt been a issue with the 14/47 and there are some steep hills here in Indiana. To me its the best compromise but im a little guy. It all depends on what kind of riding you do and how much weight your little tw is moving around. Good luck!
 

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Discussion Starter #5
I'm also a smaller guy weighing in at 130lbs soaking wet with a large pair of boots on
Thank ya'll for your input i'm a Newb to this stuff this being my first bike and trying to figure it out
 

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I am a bantam weight too and if you are 130lbs remember there are blokes riding TW's that are literally twice our weight on standard sprockets.



I don't think you will ever need to worry about needing extra torque with a 47t rear. I can ride in top gear on the street up almost any hill with 15/50 combination, that is roughly equal to 14/47.



I don't ride difficult trails though, only because we don't have any
 

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I'm 150-155 and the 47 is fine for my taste even in the rough stuff. Heck If I wasn't doing any serious trail riding even a 15/47 would be nice for road riding but I'm sure it would hurt a bit in the woods. The guy that rode to alaska had a 44 or 45 rear sprocket. These are awesome little machines and us short folks can actually touch the ground with both feet.
 

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I was going to change my counter-shaft sprocket to a 15 T but an off road event yesterday changed my mind. On an all day trail ride near Roosevelt Lake I tackled a very steep loose dirt hill climb in 1st gear. I thought the little bike would go straight up a wall in 1st gear if it could get traction. I was wrong. Before reaching the top it became clear that my RPMs were dropping and at wide open throttle in 1st gear my TW bogged down and died. I slid backwards several yards with both wheels locked up on the brakes and managed a turnaround without dropping the bike. An exciting ride back down completed the unsuccessful operation.



The bottom line for me was that if you live in a mountain state, there can be times when the stock 1st gear is not low enough. If you live in Nebraska you can gear your TW for highway use.



Chip
 

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I was going to change my counter-shaft sprocket to a 15 T but an off road event yesterday changed my mind. On an all day trail ride near Roosevelt Lake I tackled a very steep loose dirt hill climb in 1st gear. I thought the little bike would go straight up a wall in 1st gear if it could get traction. I was wrong. Before reaching the top it became clear that my RPMs were dropping and at wide open throttle in 1st gear my TW bogged down and died. I slid backwards several yards with both wheels locked up on the brakes and managed a turnaround without dropping the bike. An exciting ride back down completed the unsuccessful operation.



The bottom line for me was that if you live in a mountain state, there can be times when the stock 1st gear is not low enough. If you live in Nebraska you can gear your TW for highway use.



Chip


throw a 70T on the thing and show that hill who da masta!
 

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Well, it isn't a Glasair III.




I've found out that Tdub doesn't do vertical slow. Close, but not quite. If kept wound up 8500rpm or better, she'll pull the stock sprockets vertical, but that's 19mph and not always enough runup room for that speed.
 

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IMHO, if you're a light weight you could even put a 45 tooth sprocket and you'd be fine on the road. It's just a matter of getting used to it. My father is using my 45t-sprocketed TW and he complains about short gearing! But he's used to street bikes. 47 tooth should be great.
 

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are there some model tdubs that come with 14 tooth up front and other models that run a 15 and is there a way to know without counting the teeth?
 

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are there some model tdubs that come with 14 tooth up front and other models that run a 15 and is there a way to know without counting the teeth?


AFAIK... all TW200's have 14 tooth front sprockets from the factory.



The stock rear sprocket depends on what country it was shipped to.

50 tooth in the USA, and 47 or 45? in other countries.



Unless you can see the side of the sprocket & it has the size stamped on it. The only two ways to tell are count the teeth, or measure the diameter. And with the sprocket hidden behind the case cover, it's gonna be hard to tell either way.

 

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My Chain and Sprockets are worn smooth out and I need to replace them so I've been thinking about going from 50t to 47t to gain some top end speed zipping around town. I would like to keep some of my low end torque for trail riding but would still like a little more top end. Is the 47t sprocket the right choice?
Thanks all of ya





Z-Dub on a T-Dub Well I just finished installing a 15 tooth front and 47 tooth rear today!! I was running 15-44 but the new combination is really nice. I guess the 15-47 combo shifts smoother on both the 3-4 to 4-5 gears I was at 50mph with no problems I am also able to do low speed turns in 2nd gear a lot easier. I hope this helps. Also I did a stupid while putting it back together and pinched my wires so make sure they are clear of danger because the replacement is a pretty few bucks. I am a 250 pound rider.
 

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47 tooth is the sweet spot for me. I am no light weight at 6' and 200# it does just fine. Better on the highways since it is not buzzing so hard to make 60 mph. First gear is no longer "granny low". On the trail, there is still plenty of low end for climbing.
 

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Do a dual sprocket set up, one sprocket with 45t and the other a 55t. You will never be happy until you do.
 
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