Bosch speed limit

[Johnking Brickwork]

Hi I’m new to e mountain biking and mountain biking in general so looking around to find a suitable type of bike has led me to ask a question.....
are Bosch admitting that there motor isn’t capable of sustained assisted riding above that 15mph speed and that is why they make it so difficult to derestrict a ebike motor?
I understand Bosch have the speed limit for EU LAW but my understanding is if the bike is registered tax tested insured, (l also understand this isn’t really an option but hypothetically possable)
I can legally be pedal assisted faster than 15 mile an hour.
it’s also legal to be pedal assisted on private land above 15mph so why isn’t the option available for these occasions
My car can do 155mph but the speed limit around town is 30mph, Mercedes do not limit my car so why do Bosch limit my bike.
surely it should be down to a individuals common sense to only use a speed box or similar device in places where it’s legal to do so, and not telling me I just can’t, unless the motor isn’t capable
in witch case I can understand why they are going to such lengths to inhibit the use of a chip, but I can’t find any other posts stating this is the case.
I would appreciate any comments in explaining this to me

Ps. Picking up a Scott strike today with a gen 3 Bosch as at present I believe the gen 4 can’t be chipped successfully yet? Or can it? 20/2/2020

 

[Nealh]

The reason for the 250w 25km/h speed limit is exactly so that pedelecs can be classed as a normal push bike with light assist, it rules out any need to have a , helmet, motorbike licence, taking a CBT, having insurance or any mot, dvla licensing at all.

It is not just Bosch but most legal OEM pedelecs with a 250w motor are the same whether hub or mid drive they adhere to EU legislation. If you want more then there is the s- pedelecs class or 350w, 45kmh which needs dvla registering etc,etc, etc.

Any bike defined as a pedelecs is allowed off road and on cycle paths anything not defined as so is a moped, the rules/law is simple to follow with out having to pass or carry out extra prohibitive expense.

 

[Deleted member 25121]

Picking up a Scott strike today with a gen 3 Bosch as at present I believe the gen 4 can’t be chipped successfully yet?

That's correct, the latest controllers can detect if a dongle is being used.

 

[soundwave]

dongles still work on the latest motors but a firmware update could change this.

Bosch 2020 Tuning Vergleich: Der aktuelle Stand | E Bike Tuning Blog

Viele warten auf das beste E Bike Tuning Modul für die neuen Bosch 2020 CX Motoren: Bosch 2020 Tuning heißt das Schlagwort! Zwei Lösungen sind bereits auf dem Markt erhältlich. Andere Hersteller werden in Kürze folgen. Wir berichten hier über den aktuellen Stand im Bereich Bosch 2020 CX Tuning...

ebiketuningblog.com

you will; not damage the motor using a dongle but it will half the range of the batt if you keep it in full assist mode.

a dongle gives you no extra power it just removes the speed limit but you might have to also change the gearing otherwise you will just spin out.

 

[Deleted member 25121]

dongles still work on the latest motors but a firmware update could change this.

Bosch 2020 Tuning Vergleich: Der aktuelle Stand | E Bike Tuning Blog

Viele warten auf das beste E Bike Tuning Modul für die neuen Bosch 2020 CX Motoren: Bosch 2020 Tuning heißt das Schlagwort! Zwei Lösungen sind bereits auf dem Markt erhältlich. Andere Hersteller werden in Kürze folgen. Wir berichten hier über den aktuellen Stand im Bereich Bosch 2020 CX Tuning...

ebiketuningblog.com

you will; not damage the motor using a dongle but it will half the range of the batt if you keep it in full assist mode.

a dongle gives you no extra power it just removes the speed limit but you might have to also change the gearing otherwise you will just spin out.

Yes indeed, to quote from your link:
"
Notes and dangers

Overall, it must be pointed out: only the anti-tuning measures known so far can be recognized. If other, previously unknown, should occur, the above solutions may no longer work. Later updates from the manufacturer could also include further anti-tuning measures.
"

 

[Woosh]

I understand Bosch have the speed limit for EU LAW but my understanding is if the bike is registered tax tested insured, (l also understand this isn’t really an option but hypothetically possable)
I can legally be pedal assisted faster than 15 mile an hour.

it's not that straightforward, besides wearing always a helmet and staying off shared paths.

We don't have s-pedelecs class in the UK, so your bike needs to be in a motorbike class.

1. You will need a number plate, so the bike needs to have a bracket for it.
2. You will need numberplate and automatic lighting, much more challenging to DIY it from a normal EAPC.
3. You will need indicators
4. you will need a throttle, much more challenging to DIY it from a normal EAPC.

The only practical way to go assisted at over 15mph is to buy an electric motorbike with certificate of type approval already done somewhere in the EU then register it here.

 

[soundwave]

it's not that straightforward, besides wearing always a helmet and staying off shared paths.

We don't have s-pedelecs class in the UK, so your bike needs to be in a motorbike class.

1. You will need a number plate, so the bike needs to have a bracket for it.
2. You will need numberplate and automatic lighting, much more challenging to DIY it from a normal EAPC.
3. You will need indicators
4. you will need a throttle, much more challenging to DIY it from a normal EAPC.

The only practical way to go assisted at over 15mph is to buy an electric motorbike with certificate of type approval already done somewhere in the EU then register it here.

the police are not interested no one has had a bike taken from them the only way this will be a problem is if you kill someone on it.

plod will not chase you, i have tried pmsl

 

[Fat Rat]

Hi welcome to the site
You always have the option of a moped

 

[wheeliepete]

are Bosch admitting that there motor isn’t capable of sustained assisted riding above that 15mph speed and that is why they make it so difficult to derestrict a ebike motor?

It's not just the motor you need to worry about, the dangers and risks are many riding at CRAZY sustained speed. You have been warned.

eBike tuning – illegal and dangerous

Technical manipulations to the pedelec are a safety risk. If an accident occurs, it may result in high liability costs and criminal prosecution. Bosch asks all eBike riders and providers to refrain from tuning.

www.bosch-ebike.com

 

[BazP]

It's not just the motor you need to worry about, the dangers and risks are many riding at CRAZY sustained speed. You have been warned.

eBike tuning – illegal and dangerous

Technical manipulations to the pedelec are a safety risk. If an accident occurs, it may result in high liability costs and criminal prosecution. Bosch asks all eBike riders and providers to refrain from tuning.

www.bosch-ebike.com

That's a bit harsh, you could be riding at 17 to 20 mph as I did for years on a non electric bike. I wouldn't call that crazy. I know, I know, it's illegal, I was just commenting on the "sustained speed" bit.