40 Tooth Sprocket for the CSC tt250

[Highwayman2020]

Does anyone know what other brand sprockets will fit the tt250? CSC sells a 45t but I was wondering if a 40t was available.

[mtiberio]

JT sprockets, JTR-269
anywhere from 34 to 56:
http://www.jtsprockets.com/catalogue/sprocket/JTR269/

[Megadan]

CSC just sells the same JT Sprocket that us Hawk guys use. JTR269
https://www.amazon.com/JT-Sprockets-...001AVQJEE?th=1

The only difference is they sell 4 5mm thick spacers with them and instruct you to mount them with the groove facing out to make up for the missing offset the stock sprocket has.

A couple of other TT250 owners here have mounted them without the spacers and said they noticed no issue with the chain alignment.

[Highwayman2020]

Originally Posted by Megadan

CSC just sells the same JT Sprocket that us Hawk guys use. JTR269
https://www.amazon.com/JT-Sprockets-...001AVQJEE?th=1

The only difference is they sell 4 5mm thick spacers with them and instruct you to mount them with the groove facing out to make up for the missing offset the stock sprocket has.

A couple of other TT250 owners here have mounted them without the spacers and said they noticed no issue with the chain alignment.

I see no way to find the spacers. Okay I see them on the CSC site. Thanks

[Megadan]

You can also just buy some of these guys if you want. https://www.aluminumspacers.com/spac...ole/mas16-10-5

In fact, they sell a decent variety of lengths so you could really fine tune the sprocket position if you wanted.

[mtiberio]

the sprocket and spacer from CSC is hardly marked up from bargain suppliers (30 vs 25). Get 1 sprocket with spacers and long bolts from CSC and then get the rest of your sprockets almost anywhere. Right now I have the stock 50, a 47 I had from my last TT250, and a 45 I bought from CSC. If I go 43 or 42 it may be aluminum.

[Megadan]

Originally Posted by mtiberio

the sprocket and spacer from CSC is hardly marked up from bargain suppliers (30 vs 25). Get 1 sprocket with spacers and long bolts from CSC and then get the rest of your sprockets almost anywhere. Right now I have the stock 50, a 47 I had from my last TT250, and a 45 I bought from CSC. If I go 43 or 42 it may be aluminum.

I wouldn't personally run an aluminum sprocket on a bike that will see any sort of off roading. The grit that sticks to the chain and sprockets will chew it up pretty fast. Plus, with a big 18" off road tire, tube, and steel rim with spokes, the few ounces you save won't do a lot of wonders for acceleration. You would get far more from an aluminum rim than an aluminum sprocket in terms of any performance gains due to a much lower moment of inertia.

[mtiberio]

No doubt, but an AL sprocket is a fraction of the cost of aluminum rims.

[Megadan]

Originally Posted by mtiberio

No doubt, but an AL sprocket is a fraction of the cost of aluminum rims.

A brand new Tusk aluminum rim in 18x2.15 is about 80-90 bucks shipped. That's maybe 2 or 3 custom aluminum sprockets, at least the last time I priced them. It also gives one heck of a strength upgrade to the wheel. Granted, you need two if you want the same rims from and rear, so it is more expensive up front for sure.

To each his own though. Like I said, I wouldn't do it myself, just my own opinion, doesn't mean I am right or you are wrong at all.

[Highwayman2020]

Originally Posted by Megadan

You can also just buy some of these guys if you want. https://www.aluminumspacers.com/spac...ole/mas16-10-5

In fact, they sell a decent variety of lengths so you could really fine tune the sprocket position if you wanted.

Thanks for that information. New bikes have a learning curve.