Rear wheel for Hammerhead Torpedo

[TexasBurley]

Looking for some help. Have a new to me/my boys hammerhead torpedo w/ 136 cc. In great shape, but curious if anyone knows the specs of the rear wheels. Would like to find an aftermarket rear wheel for a couple different reasons. 1. The rear is about 4-6” narrower than the front. I’d like to have a higher (numerically lower) offset wheel to push the tires out for a little more stability. 2. I’ll be going to a taller and wider tire to reduce the speed a little. Any help directing me to info on the specs on wheel that would work is appreciated.

 

[pghp8ntballer]

Check out hammerheadperformance.com

They have manuals available to download in the technical section and you can peruse the shop, maybe the part description has the detail you are looking for.

 

[TexasBurley]

I found it’s a 5/8 shaft with a 3/16” key way with a 2-1/2” hub depth. The wheel is held on by a castle nut. I ordered some parts from hammerhead performance for a tune up and brakes. I guess I should look for something with a 4” hub depth?