I wanted a “Touring” bike to replace my previous “Sport” model. Touring with a Pillion (back seat passenger) is so comfortable on this bike.
Yes, to work on today’s cars and bikes you digital tools. The GS-911 diagnostic tool from Hex-Innovate in South Africa connects right to the bike. Really well-made piece of kit!
While doing the annual inspection (here it’s an oil change), I connect the GS-911 to the bike’s data buss and download all the sensor readings (and look for any errors). When finished, I reset the service interval.
I also carry the tool when I travel as it can communicate via WiFi with a phone app. That way I can diagnose the error if I run into a mechanical problem.
In preparing the bike for the 2021 season, I decided that the tires — original Continentals with 5000 miles — probably should be replaced. I didn’t realize the extent to which these modern tires, with rubber of varying hardness, wear so unevenly.
The rear tire didn’t LOOK BAD!
But then the front tire held a secret! Over the winter it was losing air a lot faster than the rear. Jacked it up and found several bubbles.
Time for NEW TIRES!
Front tire had several bubbles hard to see.
New Tire Woes...
Getting new tires is easy.
- You can take it to a dealer (for me an hour away)
- Or do it yourself. (my path here)
I decided on Michelin. Revzilla had good prices on Pilot Road 5 with just 3 day delivery.
BUT… while I have the tires off, I should also replace the TPM (tire pressure monitor) as the internal, non-replaceable battery is now 6 years old. I don’t want to unmount the tires later if the TPM quits.
BUT… If I replace the TPM, how do I reprogram it? Ah, the GS911 can handle that.
OK, BUT then how do I SWITCH ON the TPM while it sits in a stationary bike?
$8 will buy you a EL-50448 that you hold near the wheel rim and it “activates” (= switches on) the TPM sender. NOW the GS-911 can read it.
Getting the tires off and on will be easier with a proper tool like this Motion-Pro Bead Breaker.
To static balance the rear tire you will need a special adapter to fit the (82mm?) hole in the wheel. BMW makes one or you can buy one from Marc Parnes who produces a professionally machined CNC part. Considering the quality of his work, I also got his wheel balancer.
Yes, I replaced Marc’s ORIGINAL thumb-screws (see photo) with socketed allen screws to eliminate any asymmetric balance.
TPM - Tire Pressure Monitor
Before we remove the TPMs, we first use the activator to turn it on, so the GS911 can read the current IDs.
Install the new units and then repeat the process. The GS911 learns the new IDs and programs these into the computer. Your bike then recognizes them and displays the readings on the screen.
I’ll let you figure out how to mount the tires. Yes, you will need a sizable quantity of cuss words, but when done, you can get on to Balancing.
I’m using the custom-made balancer, but any static tool will work as long as you have the adapter for the rear wheel. The front axle fits on the existing balance shaft. I suspect the tire balance is more accurate than the tire wear! But the precision bearings allow for minute adjustments.
Video showing the sensitivity of the high-quality balancing tool.
The Test-Ride was startling. It felt like a brand new bike. Tires tracked positively into every curve. Ride was again silky smooth.
Intercom - Sena S20
An Intercom changes the entire biking experience. Hands-free chatting between driver and passenger.
AND… if you travel with other bikers, the whole group can be linked.
It’s been over 6 years sine I first installed the Sena S-20 Bluetooth headsets and they have performed flawlessly. A battery charge lasts the whole day and the biking trip becomes a pleasure when you can chat without screaming! The intercom also delivers all the expected audio info such as GPS directions, music and hands-free telephone.
A Custom Interconnection Method
I wrote this section because I was not happy with the way Sena suggested linking the phone to the Intercom.
SENA: In their method, the phone is linked directly to the Sena Intercom. An incoming call then rings in your headset. I don’t want unnecessary interruptions if I need to concentrate.
CUSTOM: So in my method, an incoming phone call appears as a call record on the GPS screen. You can just glance at it (if you want) and to answer, just touch the screen. It’s hands-off from there.
LINKING: The difference lies in pairing the Phone to the BMW Navigator V (or VI) instead of to the Sena. The navigator talks to the Sena anyhow, but this way, an incoming call does NOT audibly interrupt you. This also changes the source of the music, etc. So you have to decide.
(See diagram I made up to match the Sena instructions style)