r/RigidMountainBikes

Curiosity has spawned this question. Im original 87/88 Jamis Dakota owner. Looking for a basic odometer. Speed and distance traveled. Maybe time traveled. Im using it on basic rail trails and C&O canal. In your honest opinion what's the best NON APP. item to mount to my cockpit. Ive got her set up for Bikecamping. .trailer Burley COHO XC with 3" wide tire. 26×2.15 tires on the ole girl..Any insite would be greatly appreciated..sincerely at your mercy.