19.5 mph top speed

[Sparky731]

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.

 

[dodgeman]

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.

 

[JoeDirt]

Well I talked to Bosch customer service rep last week and he mentioned that my 19.5 cutoff should actually be 20 mph cut off. He mentioned that it is an error in the programming and I need to take it to the local truck dealership to have and recalibrated to a larger wheel diameter.. I'll take the extra half mile per hour thank you. Next week I will be making a visit. And yes to all the other verb + 3 Riders, don't be discouraged with the 20 mph speed limit. Like myself I am just going to enjoy the bike for what it is and if I feel the need for speed down the road I will probably pick up an ultra lightweight class 3. Or at least something with a manageable class one two and three setting feature.

 

[AvalancheRun]

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.

 

[jabberwocky]

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.

 

[JoeDirt]

Well this morning I did a quick 30 Mi along the San Gabriel riverbed as we call it the San Gabriel wind tunnel. The winds were exceptionally strong coming back headwind! Definitely got my legs of workout and played around with the different modes, was able to maintain a 19.5 with strong head wind, no one was able to pass me on a regular bike. But my legs definitely got a good workout as I have not been regularly on the bike for over 2 months. I am getting jipped at 19.5 mph and spoke with Bosch representative, he mentioned to take it into the local dealer so they can recalibrate to a solid 20 mph. Everywhere I go I get jipped! things cost more, less quality, I've proclaimed myself to become a quality control advocate. If my food is cold in a restaurant it goes back kind of a mindset!.

 

[JoeDirt]

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.

 

[dodgeman]

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.

 

[AvalancheRun]

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.

 

[JoeDirt]

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.

Well I just used my perion head unit that came with the bike and saw that it was dropping off at 19.5 mph. I think the gazelle is the same so I would just go by that and have the dealer take a look at it. It was a fairly quick fix once he plugged it in. At first it was a little confusing because it said the circumference was the right one but after he made a call to trek they were able to tell him that you need to change it manually. And it can only be done through proprietary Bosch software that only trek or gazelle dealerships have access to.

I called Bosch first to make sure I wasn't barking up a tree. Then I called Trek just for the hell of it and they basically said take it to the dealership they will honor the fix. I'm not sure how gazelle does their business.

 

[Roamers]

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.

 

[JoeDirt]

Definitely has an impact on the overall mapping of the mph. Today I did a quick 25 Mi and noticed that at 19.3 with assist in sport mode I had absolutely no stress on the legs, it was beautiful.

Then as I went over 19.5 I was still getting a assist in sport mode, but very little that I could feel. I switched to Turbo mode and barely felt any added assist.
But it did not feel like the brakes were being put on with the full 53 lb weight of the bicycle when I hit 20 mph.

My point I'm trying to say is that I could feel assistance up to 20 but very little from about 19.3 up. Hope this makes sense. But yeah the mapping did cut out before at 19.5.

Perhaps another way to explain my dilemma was every time the assist would reach its limit in mph the full weight of the bike would hit me.

if you ever try pedaling a bike that's 53 lb with water and tools let's just say 55 lb you immediately fall back on the mph when the assist stops even if it's momentarily. Unless you're name starts with Gunther or Magnus!

 

[PedalUma]

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:

T154 E-bike Centre Control Panel - To7motor

This is a T 154 E-bike Centre Control Panel with a TFT colorful screen for ebike drive system , transparent silicon rubber button with LED back-light

to7motor.com

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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

 

[JoeDirt]

I'm looking to move up that way around Novato Petaluma Santa Rosa. Getting out of this armpit down here. Do you run a bike shop or is this something that you build on your own.?