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Old 04-03-2009, 09:44 AM   #122
Airhead Wrangler OP
Adios Mexico
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Joined: Mar 2008
Location: Back in Seattle, FINALLY
Oddometer: 6,606
One more observation:

I already knew this to be the case, but definitely didn't realize the extent. The stock BMW speedo is optimistic. We all know that. What I didn't realize though is just HOW optimistic. Since hooking up the trailtech and having a working tach and speedo, I'm now turning 4180 RPM at 60mph whereas that engine speed had me over 70 mph previously. GPS agreed with my speedo REALLY well too. The stock wheel size setting on the trailtech had me within 1 mph of the GPS at 70mph. No wonder it always took me so long to go everywhere before. I was actually going 60 when I thought I was going 70.
R80ST Gets The HPN Treatment
Seattle to TDF on an airhead

Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.
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