JT Sprockets JTF259.12 12T Steel Front Sprocket
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Yes, but the sprocket cover will be extremely difficult to remove and replace. Depending on the chain, it might not even fit. Instead, I went 14/40, which necessitated the chain being cut.
Based on my experience with the similar TaoTao TBR7, the front has a 15 tooth and the back has a 47 tooth, which provides excellent off-road torque and a top highway speed of about 55 mph. By setting the front to 17 and the back to 40, I was able to increase my speed. Because I don't do much off-roading or drive at high speeds on the highway, this gives me sat torque.
The size of the chain and the diameter of the output shaft are the most important factors. Check out the picture that looks like an engineering drawing to see how this style fits a 428 chain and an 18 mm output shaft.
In my opinion, the answer is yes. I bought a 2019 Taotao tbr7, and the internet recommended changing the sprockets to improve the top end. For the front sprocket, I went with JT Sprockets' 17T. It went on smoothly and gave the bike a more comfortable highway feel.
Selected User Reviews For JT Sprockets JTF259.12 12T Steel Front Sprocket
On my 2018 RPS Hawk 250, it works perfectly. Some people have had problems with it, primarily due to chain upgrades, but if you stick with the stock chain, it will work fine. Even though I'm a little over 200 pounds, I can easily hit and maintain 60 MPH when combined with a 45T rear sprocket.
For my 2020 Hawk 250, I purchased this. Over the course of my 50 years, I've owned and replaced numerous sprockets on various bikes of various makes. The JT sprocket was loosely fitted on the splines in this case. It had the ability to move around. When I replace sprockets on Japanese bikes, I've never had this issue. It's worth thinking about. br> br>(I contacted JT sprockets via phone and email, but they have yet to respond. ).
This is what I put on my Arctic Cat 90 yard beater (kymco, mongoose, whatever). Yes, it's a "kids" ATV, but it's useful for towing a small trailer, maintaining game trails, moving stuff, or engaging in general adult foolishness involving cold beverages. The issue is that it isn't designed for a 200-pound overgrown child. br>Throw this on with a new chain (may as well, don't know if it fits with the factory chain) and remove the restrictor ring from the variator and you've got yourself a whole new beast! tops out at 30mph (a little sketchy on a small ATV) with a solid take off and plows through light brush. br>Well worth the money.
I won't use the word "cheap" to describe the JT sprockets because they are made of high-quality steel and are expertly machined, but they are a low-cost way to make a small-engined bike much more versatile, and I purchased three for my Brozz. I replaced the rear tooth with a 42 tooth and purchased a 15 and a 16 tooth front tooth. Front sprockets change quickly and easily, and the bike is more fun because I can gear it to suit my specific needs for any application in 15 minutes with my three front sprockets (in addition to the stock 17).
This thing was difficult to put on at first. I figured out what I was doing wrong, and now everything is fine. The chain on the TBR7 is too tight, which is a problem. It's a fact that the 2020 chains are extremely tight, so look for a good HD 428 chain instead. With this sprocket, I was able to cruise at around 50 mph. With the 46T on the back, it'll hit 55, but it'll be pushed. The carburetor will be upgraded next. Everything will be fine if I can get it to 55. This isn't a motorcycle for cruising down the highway.
Splines are a little on the thin side. It went on and on, and it appears to be working well. My Hawk 250's gearing was changed to a more manageable setting as a result. The splines were not as deep as the originals, but the spacing was correct, and it fit perfectly and has held up well so far. I'd prefer it if the splines were a little deeper, but so far it's held up well. We'll have to wait and see.
For my Hawk 250, it's perfect. Combined with a rear sprocket with 44 teeth. One of the links in the chain needs to be removed.
On my brand-new TBR7, I had already removed the carburetor and replaced it with a UNI air filter pod. It went from 50 to 65 miles per hour as a result of this. I increased my top speed to 70 mph by installing a 42 tooth rear sprocket and a 17 tooth front sprocket.
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