Up to 30 my spedo and GPS are dead on.
Over 30 I get a difference of a 2-3 mph.
As I go faster in increases to about 5 mph off.

I just assume that anything over 30 is 5mph off.


SOLD: 07 Black BA, 39mm FCRs, TPUSA stage 1 head, TPUSA 813 cams, TPUSA 10.8:1 pistons, TTP #3 igniter, Specialty Spares Long Cannons, Tsukayu Hard Bags. 82HP/55tq NEW: 19 Goldwing Tour DCT