I've been pleasantly surprised with what came stock in the 2-bolt SYM/ Carter Talon engine i put in mine. I'm pretty sure its 14/41 (40?) with 16-31 sprockets and 22x12.50 tires. Still haven't changed the spring or rollers (14G) and it has plenty of pull and seems to have decent top-end. (don't have a way to accurately measure top speed) Sometimes I wonder why the internal gearing isn't the first mod people look at. Then again, this orphan 2-bolt is usually referred to being one of the better built clones, maybe its cyl. head/valve config. provides it with more bottom end than most.
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