I've seen many posts regarding GPS speeds, and those of you guys using them seem to trust that reading more than the bike speedo. Do all GPS have that capability or no? I've been looking at the eTrex line of GPS units (Vista model)and I haven't seen any that say they varify speed. It must been a given on those things? Plz recommend a unit that has speedo capabilities and has other good functions. Thx4ur help [img]i/expressions/face-icon-small-happy.gif[/img]

 

Heres a link to a good site.
4x4 GPS

Scott

 

The only one I've ever used is a magellan 315. I borrowed a garmin 112 once, but it wouldn't work. Maybe a low battery or it just sucked. I don't know. Here is what I found out of the magellan though.

98 AC 454- speedo-59 actual-51
99 AC 500- speedo-54 actual-52 (27" tires, with stock its about the same as the 454 was)
02 Grizzly- speedo-65 actual-60

All of those were on flat pavement in the same area. It basically told me that quad speedometers are crap, and very optimistic, probably to help lure in sales from those thinking a quad is faster than it really is.

 

I too am shopping for a good GPS. A good site is www.thegpsstore.com.

I'm pretty sure all GPS units will provide an accurate speed read-out. Depending on features - you should also be able to record your data on where you have been and recall the speed from that history. If you are mostly riding in open terrain, a GPS that is WAAS capable will give more accurate readings.

Magellan has two new models available in about a month. They're a bit bigger that the garmin eTrek line, but they have a bigger screen and backlighting.

A good GPS seem like a perfect option for trail or desert riding. If not simply to stop from becoming temporarily lost, a GPS is the perfect way to mark a good spot for the return trip.