Upgrade advice. 2003 Cannondale Jekyll. Is it worth changing the drive line to Advent X 10 ring rear with a Single front gear? : r/mountainbiking
Cannondale Jekyll Mountain Bike In Bikes for sale | eBay
Cannondale Jekyll 3000 with Lefty Max Front Fork...upgraded Mavic CrossMax Wheels...one Of The Last Handmade In The USA Models. for Sale in Anderson, IN - OfferUp