hpn gears
 

hi
has anyone fitted the hpn 1st and 5th gears how did get on my gs spends most of is time off road but till want to crusie a 70 80 mph on road any comments welcome
cheers
chris

I have both in mine, rode across Canada with it, around 10,000 miles so far. So far so good.

Note that the difference in speed is only about 5-6% lower in first and the same taller in fifth. It drops a few hundred rpm only at any given speed, but it does make a (small) difference in the feel on the highway.

I can't feel the difference in first, but it is several hundred more rpm at a given speed, or a little bit slower before stalling, so that's a good thing off-road, but it's not an earth shaking difference.

Assuming you have an R80G/S, or R100GS, you should be able to cruise at 70-80mph all day as standard. I routinely do it two up loaded. The engine is quite happy to rev - many people don't rev them enough!

I've even cruised mine at 90mph on the autobahn almost all day - no worries!

The R100S, with somewhat higher gearing, will happily cruise all day for a week at 100mph+ (similar to 90mph on a GS)(damhik!)

If you have the gearbox apart for a rebuild anyway, you might as well do it, but I wouldn't bother unless it needed to come apart. Remember that airhead gearboxes should get new bearings every 60-80,000 miles as routine mainenance.

------------------
Grant Johnson

Seek, and ye shall find.
------------------------

One world, Two wheels.
www.HorizonsUnlimited.com