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Only the top half of my ST7 Gates Carbon Drive CDX belt part number is available and what there is already worn after a couple hundred miles. I counted the teeth and came up with 113. Does anyone know if this is correct part number? 11M-113T-12CTS BLACK (other colors are: BLUE or BLACK W/R)...

Some more observations, after some more riding miles: Braking I've had some white knuckle moments on downhill descents, with full recuperation (battery at 60%), where the disc brake stopping power just isn't as good as my ST2s The additional bike weight is definitely a factor Gearbox...

6 weeks is a long time to wait, but good to hear they're giving you a new ST7 at least.

Try a reset and then calibrate the Torque Sensor and adjust the sensitivity.

@MikeyG Did you also try increasing the Torque Sensor sensitivity?

Has anyone else seen error E 21041C when charging the battery on the bike? This error only pops up with the battery installed in the bike and the Stromer's charge indicator turns red. When this happens, the only way I can charge the battery is to remove and charge it directly.

I fixed a rear flat on my ST2 S, but didn’t remove the wheel, just did the old school in place repair. I haven’t had my ST7 long enough to explore removing the rear wheel yet. I suspect the rear wheel set up is similar to the other ST models with belt drive. Unfortunately the manuals are no help...

Fair point. I carry a repair kit for tubes. It's a habit from when a bike was my only transport for the first 20 years of my life. I can remember bubbling tubes in a cow trough after a patch.

I was able to pickup a demo Stromer ST7 (Gold), but sadly I have to sell my ST2 S. The ST7 is a great bike! What I like so far: Pinion Gearbox Love the auto downshift to my chosen start gear when stopped Super quiet drive train - the belt is a huge improvement Stability at speed on the...

Excellent condition, with some cosmetic wear from use. No corrosion. Offered with new Brooks ergonomic grips and new Brooks saddle. Omni unit/display has been professionally upgraded to Omni C 3G from Omni B unit. Battery is the Samsung blue 983Wh/20.5 ah Lithium-ion. Local pickup in Portland...

I opted for the dealer Omni C upgrade for my ST2S in 2019. The tech said the physical installation was straightforward, but there were issues with app registration, so they kept the bike for several days to get assistance from Stromer. YMMV

It will definitely get road dirt and water caking the horn up down there.

Reading up on similar issues affecting other bike brands with Magura hydraulic brakes, the consensus seems to be that this issue is more common if the brakes weren't bled the way Magura recommends. Even if the lines were purged of air, but the small reservoir in the brake lever has some left in...

The Magura brakes are used on other bikes, so it wouldn't be Stromer specific.

If you can't wait for an integrated loud horn/bell, I recommend an Orp Horn. Saved my bacon a few times...

A belt drive would be awesome...

I concur with @JayVee and @devhead, I frequently trigger traffic lights by laying my Stromer over to activate the sensor circuits in the road, never had an issue with my brakes.

There is a hidden system menu, check Ravi's post #5 here: https://electricbikereview.com/forums/threads/drive-error-on-st2.8479/

The micro switches should be in the brake levers, there is a small wire that runs from the lever to the controller. I'm away from my bike right now, so unable to be exact.

Could it be the brake micro switch sticking, since you mention the problem resolves with a brake tap? Any error messages?