17mm Sprocket

IXIRoninIXI · 05-24-2021, 09:58 PM

I noticed most front sprockets I am finding are with a 17mm inner dimension. I have seen 18 and 20 as well. I am about to order new sprockets for my TBR7 D. Are the 17mm sprockets the ones used for the China bikes?

TxTaoRider · 05-25-2021, 05:46 AM

My tbr7 uses a 20mm. I think all the cg motors do.

Mudflap · 05-25-2021, 08:27 AM

The original Honda Cub used 17mm so most but not all Chinese horizontal engines use the same. Many horizontal 125cc engines use 20mm as well as most vertical clones.

05-24-2021, 09:58 PM	#1
IXIRoninIXI Join Date: Apr 2021 Location: Western Mass Posts: 28	17mm Sprocket I noticed most front sprockets I am finding are with a 17mm inner dimension. I have seen 18 and 20 as well. I am about to order new sprockets for my TBR7 D. Are the 17mm sprockets the ones used for the China bikes?
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05-25-2021, 05:46 AM	#2
TxTaoRider Join Date: Oct 2020 Location: Flower Mound Texas Posts: 904	My tbr7 uses a 20mm. I think all the cg motors do. __________________ 2021 Tao Tbr7 - "Lucille" Mods so far- Brozz swingarm, 21" front rim (Bridgestone Tw302 rear/Dunlop D606 front tires), Digital gauge cluster, pz30b pumper carb, after market hand guards, aftermarket brake and clutch levers, round fold away mirrors, Fly handlebars shortened slightly, 13t front sprocket 2009 Q-link Legacy 250 1982 Suzuki GS1100ES - "Jolene"
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05-25-2021, 08:27 AM	#3
Mudflap Join Date: Sep 2014 Posts: 1,873	The original Honda Cub used 17mm so most but not all Chinese horizontal engines use the same. Many horizontal 125cc engines use 20mm as well as most vertical clones.
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