Specification model:

Upgrade top configuration-with an imported chain, a four-stroke (pure gasoline)

Upgrade top configuration-with two four-stroke imported chains (pure gasoline)

Upgrade top configuration-with imported chain three four-stroke (pure gasoline)

Upgrade top configuration-with four four-stroke imported chains (pure gasoline)

Upgrade top configuration-with five four-stroke imported chains (pure gasoline)

Upgrade high configuration-with a domestic chain two stroke (mixed oil)

Upgrade high configuration-with an imported chain, a two-stroke (mixed oil)

Upgrade high configuration-with two two-stroke imported chains (mixed oil)

Upgrade high configuration-with three two-stroke imported chains (mixed oil)

Upgrade high configuration-with four two-stroke imported chains (mixed oil)

Upgrade high configuration-with five two-stroke imported chains (mixed oil)