20hp? BTR build

GoldenMotor.com

Tony01

Well-Known Member
Nov 28, 2012
1,789
1,848
113
sf bay area
I'm in South Carolina but thanks
Pirelli MT66 is what I was thinking. I’ve seen them on Pats bikes at the bike show. They come in a 80/90-21 which is only a 1/8” wider than your beach bums and probably smaller on the OD. There is also Shinko 230. You’ll still have to run tubes if you have spoke wheels but they won’t leave the rim if they pop like bicycle tires will


Yeah Norm been planning a build for my new design 2-speed with a Tilly block maybe the 263cc although small block builders I know say the smaller 236cc can make more power because it is a stronger block capable of higher compression. When I have the money to start I’ll make a build thread then. Before last year I would have built it and rode it out there, but now I must have a cage around me on public roads. Been wanting to go to that event for years now.
 

Attachments

Jun 4, 2024
13
32
13
40
Pirelli MT66 is what I was thinking. I’ve seen them on Pats bikes at the bike show. They come in a 80/90-21 which is only a 1/8” wider than your beach bums and probably smaller on the OD. There is also Shinko 230. You’ll still have to run tubes if you have spoke wheels but they won’t leave the rim if they pop like bicycle tires will


Yeah Norm been planning a build for my new design 2-speed with a Tilly block maybe the 263cc although small block builders I know say the smaller 236cc can make more power because it is a stronger block capable of higher compression. When I have the money to start I’ll make a build thread then. Before last year I would have built it and rode it out there, but now I must have a cage around me on public roads. Been wanting to go to that event for years now.
Motorcycle tires won't happen. The front fork has maybe. 3/16 of an inch clearance. Again a new fork is required as well as rims and spokes.
 

Tony01

Well-Known Member
Nov 28, 2012
1,789
1,848
113
sf bay area
Motorcycle tires won't happen. The front fork has maybe. 3/16 of an inch clearance. Again a new fork is required as well as rims and spokes.
Dang. 19s would look good and they have far more tire size options. A couple panic stops and you’ll be looking to replace that moped front brake… I’ll be here for ya when you’re ready ;)
 
Last edited:
  • Like
Reactions: fasteddy