Universal Gear / Plastic wheel Motorcycle Chain

We have 4 types of chain tensioner Mounting brackets(A , B , C , D), to fit different types of motorcycles (must have a model to fit your motorcycle) .
Quantity: only one piece .
Product Type: gearwheel Chain tensioner or Plastic wheel Chain tensioner .
Product name:A(gear);B( gear) ;C( gear) ; D(gear) A(Wheel);B( Wheel) ;C( Wheel) ; D(Wheel) .
Gear wheel Chain tensioner Suitable for chain model: 428/428H .
Plastic wheel Chain tensioner Suitable for chain model: 420/428/520,etc.
Product features: It is not easy to fall off and stuck after the installation.Extend chain’s life. Avoid relaxation of the chain, let your driving freely and safely .
Installation: No installation instructions .
Specifications: (before choosing best take their car fork pipe size, contrast and then buy, your fork tube size cannot be greater than the maximum data, otherwise it can not be installed, if less than, can cushion on the flat fork tube on the way to use, if in this range, it will be direct mounting. The following data are for reference only, the specific kind prevail) .
Size: Please see the picture presents ( Pure manual measurement, please allow the error 1-2cm