19.5 mph top speed

Like you, my 1st ebike was the Verve+3. And like you, became bored with the class 1 speed restriction. I really liked the bike but not enough. I next bought an Allant 7s. The Sport Motor is a class 3. Now I can go class 3 fast when it is practical and safe. I really like going class 3 fast.

One side note: Every Bosch motor and battery combination I have encountered is about 1.5-2.0 MPH short. As proven true every time we encounter any of myriad street radar speed detectors.

So we are losing about 10% on the top end. The Purion display will indicate 19 and the motor shuts down, but you are really doing 17 or 18 on radar. I have had Trek check and they are accurate to Bosch’s set point.
 
I feel mine cut out at 19.4 mph. I’ve also discovered the speedometer is off maybe 6% or so. This does add up to cutoff happening to soon.
 
Going to go against the grain on warranty. E-bikes have very little resale value on the secondary market (just look at how cheap upway sells practically new bikes). So your realistic options are to live with it as-is, derestrict, or buy another buy while you wait 6 months to sell yours for 1/3 the new price. Prior to spending the cash on a good derestriction module, I'd want to hear it can perform as expected from someone who owns your exact motor.

Cruising at 18-19.5 mph is fast. I would definitely prefer faster for short bursts, but wind noise gets heavy after about 18 mph. My Bosch Gazelle really cuts around 18.5.
 
You'll have to search for a Bosch de-restricting device of some sort. Will definitely void the warranty and depending on locality, may limit where you can legally ride. My ebikes all cut out a little below the full legal cutoff; my Shimano E8000 bike ramps power down pretty fast around 18.5mph and my Yamaha class 3 ramps down starting at 26.5mph or so. I think the big brands are generally a bit conservative with where the cutoff starts (some of which is they are aiming for a natural pedaling feel so want a few mph of ramp down instead of the motor just straight up cutting out). YMMV and all that.

20mph is pretty fast, but if you're trying to hang with roadies you'll definitely fall off the back on flats and downs, especially on a big heavy flat bar bike. If you're in the USA, I'd definitely go class 3 next time.
 
I got into a disagreement with my dealer who said the speedometer and odometer was more accurate than the apps I use in my phone. Anybody who has experimented with knows the phones are surprisingly accurate. Just compare it to your cars speed and odometer and/or your car’s gps.
 
Update on the static 19.5 mph on my Verve + 3. I was able to take it to the local Trek dealership and they plugged it in and made a change to the wheel circumference.
He told me that because they have some software written in Canada they use a different formula and then when Trek gets a hold of the bike and depending on the type of tires they put on it; that also changes the calibration. So it is now set statically to a solid 20mph.
Wow, I wonder if this is the situation with our Gazelles (also Bosch). They stop at 18.5 mph according to the display and my phone speedometer app.
 
Seriously, does 19.5 vs. 20 stress people out?

My Gazelle C380 gets tougher to pedal at 20; can do 21.5 for about 6 feet on the level.

Have done 20 twice in 4 years. 1st to see if it would. 2nd to show my 11 y.o. grand daughter who was boss going up a hill.
 
Just get a Talaria and un-restrict it using the pass code when you log into their site and fill the off-road disclaimer. Come to Petaluma, CA in person to test one, then I will sell you one or three in person. My latest custom built, finished today is mid-drive that does 45 kph with 90Nm on a Surly Slacker eBikepacker, with a DM02, no throttle. No ugly wires. From a cadence of 50-90 it pulls like a high revving turbo Porsche on the autobahn when you down shift and spin. Some folks dress in a kit to go 15.3 mph. I need more protection than
Spandex or Lycra when I ride. Now I mostly use my demo Vado 4.0 that is speed limited to 28 mph because I rarely go over 24 and it is free. Free Specialized bikes are nice to ride. The DMO2 is so much smoother and faster. Programing is unrested on the DMO2. It is your playground. That Slacker has the T154-3 programable display. See the user's manual for your programing options:

POWER​

Nominal Voltage: 72V (DC)

Maximum Speed: Factory limited to 32 km/h (20 mph) Un-restricted 110 kph.

Torque: 500N.m (428 48T sprocket)

Rated Power: 5.5 kw (Unrestricted)

Peak Power: 13.4 kw (Unrestricted)

Power Mode: Eco / Sport / Hyper
 
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