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BMW G650GS Screen Swap: Fitting a Wunderlich Screen for Winter

2026-11-01

Hello everyone.
This article is about changing the screen on my motorcycle.

I'm writing this in late October.
It's the time of year when riding starts to feel cold, so the aim is to fit a larger screen and take less wind on my body.

The Sertão screen I had fitted (G650GS)

This is the screen currently fitted.
It's the screen from the G650GS Sertão, the G650GS's sister model.

Swapping the Sertão screen for a Wunderlich screen

I'm replacing the Sertão screen with a Wunderlich screen.
The Wunderlich screen gives a lot of wind protection, which is good in the cold months, but in summer you get no wind at all.

Swapping screens with the seasons is a bit of a chore, but it makes riding more comfortable, and taking the screen off gives me a chance to clean and check various parts of the bike, so I enjoy doing it.

Fitting instructions for the Wunderlich screen (illustrated)

These are the Wunderlich screen fitting instructions.
There's no Japanese explanation, but you can follow the steps just from the illustrations.

The tools I used this time

These are the tools I used.

  • 3 mm hex key
  • 4 mm hex key
  • T25 Torx bit
  • T30 Torx bit
  • 3/8-inch (9.5 mm) drive ratchet handle
  • 3/8-inch (9.5 mm) drive extension bar (75 mm)

I use Wera hex keys. They grip the bolts well, so I like them.

For Torx, I use Ko-ken bit sockets.

Removing the fitted screen

First, remove the screen that's currently fitted.

The screen removed

The screen is off.

Fitting the Wunderlich screen mounting stay

Next, fit the Wunderlich screen mounting stay.

The stay mounting point, shared with the sat-nav stay

This only applies to my bike, but I have a sat-nav stay fitted at the stay mounting point, so I had to work around it.

Side view of the stay mounting point (washers fitted on the lower side)

It's a slightly hard photo to read, but it shows the screen stay mounting point from the side.
Of the four points that hold the stay, the upper two have the sat-nav stay sandwiched in them, so I fitted washers of about the same thickness at the lower two.

The front screen stay fitted

The front screen stay is fitted.

Removing the indicator mounting bolt to fit the side stay

Next, fit the side stays.
I'll only show the left side here, but the right side needs the same work.

Remove the indicator mounting bolt. Without an extension bar, the ratchet hits the indicator badly.

Removing the side cowl mounting bolt near the indicator

Also remove the side cowl mounting bolt near the indicator.

Fitting the supplied bolt, collar and stay

In place of the removed bolts, fit the bolts, collars and stays supplied with the screen.

Ready to fit the screen

Now the screen can be fitted.
Fix the screen at the three stay points you've fitted, and the job is done.

The angle of the Wunderlich screen can be adjusted a little, so you can set it to the angle you like at this point.
This time I fixed it as close to vertical as possible.

The G650GS with the Wunderlich screen fitted

Done!
This screen is pretty big.

Before and after the screen change

Here are before and after photos.
The angles are different, so they may be hard to compare. Sorry about that.

Cleaning the removed screen before putting it away

Finally, I clean the screen I removed and put it away until next spring.
By the way, I wrap the screen in an old bath towel when storing it.

-Custom, G650GS, maintenance