Contact Overland Solutions for all your custom modifications and setup for overland travel.               Discover the extraordinary with Compass Expeditions.

Go Back   The HUBB > Technical, Bike forums > BMW Tech

BMW Tech BMW Tech Forum - For Questions specific and of interest to BMW riders only. Questions comparing which bike is best etc go in the "Which Bike" forum.
With more than 58 destinations worldwide, Edelweiss Bike Travel is Number 1 in guided motorcycle tours!
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 29 Oct 2002
Contributing Member
Veteran HUBBer
 
Join Date: Aug 2001
Location: Sicamous,Canada
Posts: 131
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
Reply With Quote
  #2  
Old 30 Oct 2002
Grant Johnson's Avatar
Administrator
Veteran HUBBer
 
Join Date: Jun 1999
Location: Vancouver BC Canada
Posts: 3,929
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
__________________
Grant Johnson

Seek, and ye shall find.

------------------------

One world, Two wheels
www.HorizonsUnlimited.com
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT +1. The time now is 00:18.