25H T8F #420 rear sprocket for For Electric tricycle Mini Pocket Bike

The main parameter of 25H 80T four holes:
Hole4pcs
teeth:80T
teeth distance:6.35mm
Hole diameter:6mm
Hole distance:46mm(the near two hole center distance)
Diagonal:65mm(Diagonal two hole center distance)
Inner diameter:54mm
Outside diameter:163mm
Weight:345g
Suitable Chain:25H chain;
Suitable vehicle:Electric scooter for small dolphins,leisure folding, etc.

The main parameter of 25H 70T four holes:
Hole:3pcs
teeth:70T
teeth distance:6.35mm
Hole diameter:6mm
Hole distance:34mm
Inner diameter:29mm
Outside diameter:142mm
Weight:240g
Suitable Chain:25H chain;
Suitable vehicle:Small scooter,small three-wheeled electric scooter etc.

The main parameter of 25H 55T four holes:
Hole:4pcs
teeth:55T
teeth distance:6.35mm
Hole diameter:6mm
Hole distance:46mm(the near two hole center distance)
Diagonal:65mm(Diagonal two hole center distance)
Inner diameter:54mm
Outside diameter:163mm
Weight:150g
Suitable Chain:25H chain;
Suitable vehicle:Electric scooter for small dolphins,leisure folding, etc.

The main parameter of 25H 65T four holes:
Hole：3pcs
teeth:65T
teeth distance:6.35mm
Hole diameter:6mm
Hole distance:34mm
Inner diameter:29mm
Outside diameter:133mm
Weight:190g
Suitable Chain:25H chain;
Suitable vehicle:Small scooter,small three-wheeled electric scooter etc.

The main parameter of T8F 54T three holes:
Hole：3
Hole distance:34mm(the near two hole center distance)
Hole diameter:6mm
teeth:54T
Inner diameter:29mm
Outside diameter:140mm
Thickness:4mm
Weight:280g
Suitable Chain:T8F;
Suitable vehicle:East China big surf electric scooter,small three-wheel electric scooter

The main parameter of T8F 54T four holes:
Hole：4
Hole distance:46mm(the near two hole center distance)
Diagonal:65mm(Diagonal two hole center distance)
Hole diameter:6mm
teeth:44T
Inner diameter:54mm
Outside diameter:141mm
Thickness:4mm
Weight:340g
Suitable Chain:T8F;
Suitable freewheel:outer diameter78mm scooter four hole gearless freewheel
Suitable vehicle:East China big surf electric scooter,small three-wheel electric scooter

The main parameter of T8F 44T four holes:
Hole：4
Hole distance:46mm(the near two hole center distance)
Diagonal:65mm(Diagonal two hole center distance)
Hole diameter:6mm
teeth:44T
Inner diameter:54mm
Outside diameter:115mm
Thickness:4mm
Weight:200g
Suitable Chain:T8F;
Suitable vehicle:East China big surf electric scooter,small three-wheel electric scooter

The main parameter of T8F 44T three holes:
Hole：3
Hole distance:34mm(the near two hole center distance)
Hole diameter:6mm
teeth:44T
Inner diameter:29mm
Outside diameter:115mm
Thickness:4mm
Weight:195g
Suitable Chain:T8F;
Suitable vehicle:East China big surf electric scooter,small three-wheel electric scooter

The main parameter of 420 37T four holes:
Hole：4
Hole distance:57mm(the near two hole center distance)
Diagonal:81mm(Diagonal two hole center distance)
Teeth:37T
Teeth distance:12.7mm
Inner diameter:64mm(suitable use for outer diameter 95mm tricycle four hole gearless freewheel)
Outside diameter:151mm
Thickness:5mm
Hole diameter:8mm
Weight:320g
Suitable Chain:420 single chain(light tricycle); 

The main parameter of 420 36T four holes:
Hole：4
Hole distance:57mm(the near two hole center distance)
Diagonal:81mm(Diagonal two hole center distance)
Teeth:36T
Teeth distance:12.7mm
Inner diameter:64mm(suitable use for outer diameter 95mm tricycle four hole gearless freewheel)
Outside diameter:149mm
Thickness:5mm
Hole diameter:8mm
Weight:320g
Suitable Chain:420 single chain(light tricycle); 

The main parameter of 420 38T four holes:
Hole：4
Hole distance:57mm(the near two hole center distance)
Diagonal:81mm(Diagonal two hole center distance)
Teeth:38T
Teeth distance:12.7mm
Inner diameter:64mm(suitable use for outer diameter 95mm tricycle four hole gearless freewheel)
Outside diameter:154mm
Thickness:5mm
Hole diameter:8mm
Weight:340g
Suitable Chain:420 single chain(light tricycle); 

The main parameter of 420 29T four holes:
Hole：4
Hole distance:57mm(the near two hole center distance)
Diagonal:81mm(Diagonal two hole center distance)
Teeth:29T
Teeth distance:12.7mm
Inner diameter:64mm(suitable use for outer diameter 95mm tricycle four hole gearless freewheel)
Outside diameter:122mm
Thickness:5mm
Hole diameter:8mm
Weight:270g
Suitable Chain:420 single chain(light tricycle); 

The main parameter of 420 41T four holes:
Hole：4
Hole distance:57mm(the near two hole center distance)
Diagonal:81mm(Diagonal two hole center distance)
Teeth:41T
Teeth distance:12.7mm
Inner diameter:64mm(suitable use for outer diameter 95mm tricycle four hole gearless freewheel)
Outside diameter:170mm
Thickness:5mm
Hole diameter:8mm
Weight:410g
Suitable Chain:420 single chain(light tricycle); 

The main parameter of 420 32T four holes:
Hole：4
Hole distance:57mm(the near two hole center distance)
Diagonal:81mm(Diagonal two hole center distance)
Teeth:32T
Teeth distance:12.7mm
Inner diameter:64mm(suitable use for outer diameter 95mm tricycle four hole gearless freewheel)
Outside diameter:132mm
Thickness:5mm
Hole diameter:8mm
Weight:230g
Suitable Chain:420 single chain(light tricycle);

 
The main parameter of 420 34T four holes:
Hole：4
Hole distance:57mm(the near two hole center distance)
Diagonal:81mm(Diagonal two hole center distance)
Teeth:34T
Teeth distance:12.7mm
Inner diameter:64mm(suitable use for outer diameter 95mm tricycle four hole gearless freewheel)
Outside diameter:140mm
Thickness:5mm
Hole diameter:8mm
Weight:260g
Suitable Chain:420 single chain(light tricycle);