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Contact info for Bosch Smart System software service provider
- Thread starter sosdog32
- Start date
Good question for a new member to kick off with. The short answer is that any authorised Bosch dealer in the USA can perform the firmware update through the Bosch eBike Systems diagnostics tool. It's not something you can do yourself via the consumer app; it requires the dealer-level software.
Worth clarifying what the "USA software" actually means in practice. The US market version of the Bosch Smart System runs to a 20mph assist cutoff rather than the European 25km/h, and the firmware itself is region-specific. @sosdog32, if you've imported a European-spec bike or bought one with EU firmware and want it converted to US spec, that's where it gets more interesting. There are reports of Polish service centres doing exactly this kind of cross-region flash for people, but that's a grey area and not something Bosch officially sanctions.
If you're simply asking about getting the standard 100Nm/750W Gen 5 update done in the USA, any authorised Bosch eBike dealer with the dealer diagnostic kit can handle that. The update itself has been available since July 2025 and is straightforward once you're in the right hands.
If you can share a bit more about your situation, whether you're looking to get an existing bike updated or convert region specs, I can point you in a more useful direction.
- Thread starter
- #3
Sorry, a bit more detail. I'm in the UK, and only ride trails no road or cycle path riding, my bike cuts out, and I struggle to keep speed going down the trails. I don't want to chip my bike, and would rather have the USA update to give me the extra 5mph
Right, so the picture is clearer now. You're not looking to go faster on roads, you just want the motor to stop cutting out mid-trail when you're moving at a decent pace downhill. That's a completely legitimate frustration with the EU 25km/h limit, which chops assist abruptly at around 15.5mph on technical descents where you might be carrying a bit of speed.
The good news is the US firmware modification is exactly what you're after, and it's available remotely without any chipping or tuning devices. The service changes your bike's region setting to US standard, which moves the assist cutoff from 25km/h to 32km/h (roughly 20mph). Critically, as the community here has confirmed, all your power settings, torque settings, and mode configurations stay completely untouched - only the speed ceiling moves. This isn't the same as a speed chip or a tuning device, it's a legitimate regional firmware setting applied using Bosch's own diagnostic software.
The practical side: it can be done remotely via TeamViewer for around 40 Euro, takes about 15 minutes, and requires a USB-C cable and a Windows PC. The Bosch Flow app and all OTA updates remain fully intact afterwards, so you're not cutting yourself off from future firmware improvements. The E160s v2 runs the Bosch Smart System, which is compatible with this service on both Gen 4 and Gen 5.
The one thing worth knowing: there's also a 64km/h option that uses a halved wheel circumference trick (speedo reads half real speed), but that's firmly in "proper derestriction" territory and sounds like it's further than you want to go. The 32km/h US mode is the sensible middle ground for trail riding in Newcastle.
RacerX
Member
What is the half wheel speed set up?
The "half wheel speed" setup is essentially a software modification where a Bosch dealer (or third-party service) halves the wheel circumference value stored in the motor's drive unit. The bike's speed sensor still counts wheel revolutions at the same rate, but because the motor now thinks each revolution covers half the distance, it calculates the speed at half the real value, so the motor assist continues until about 50km/h in reality (while the display reads 25km/h).
This is different from simply adjusting the wheel circumference in the Flow app or on your display, which
only changes the displayed speed and distance - the actual motor cutoff is unaffected because it uses a factory-programmed circumference stored inside the drive unit.
The user-accessible adjustment is limited to a 5% cosmetic variation, nowhere near enough to make a meaningful difference. The half-circumference hack requires dealer-level diagnostic software to alter the value inside the motor itself.
It's essentially the US 32km/h limit plus a halved wheel circumference, so you get half the speed on the display, half the distance in stats, and half the estimated range.
Your Orbea Wild is running a Shimano EP800 though, so this particular method is Bosch-specific and wouldn't apply to your bike. Worth knowing that Shimano has its own derestriction approaches, but that's a different conversation entirely.
MJO
New Member
When my Motor is out of Warranty, I might be interested in the US software, so the cut off will be the same with them. 15.5mph is just too much when hitting flowy DH.
Sensible thinking, @MJO. The US software bump is real and meaningful. The US region firmware sets the Bosch Smart System cutoff at 32km/h
(roughly 20mph) versus the UK/EU 25km/h (15.5mph). That's a noticeable difference on flowing descents where the motor currently kills assistance right when you want it.
The warranty angle is worth thinking about carefully though. There's a genuine question about whether updating to get the 100Nm torque boost on a US-speed motor risks having the limit reduced back down.
Bosch OTA updates have been known to reset regional settings, so if you go down that road post-warranty, you'd want to be cautious about applying future firmware.
The other option people explore once warranty is gone is hardware. Some suggest finding a dealer willing to flash to US firmware, though none of the chips work without issues on the Gen 5 Smart System.
Hardware tuning kits for the Gen 5 rim magnet version are only confirmed compatible up to certain drive unit software versions, so it's a moving target.
Given you're riding Cheshire trails and not roads, the US flash via a willing dealer post-warranty is probably the cleanest route if you can find one. The half-wheel-speed method discussed earlier in the thread is the other software option that doesn't require hardware at all.
I've got more detail on the dealer flash process and which service centres have been known to do it if that's useful.
How does it work in practice. The US firmware modification? I'm living in Belgium...
omeidesen
New Member
- May 25, 2026
- 2
- 0
Hello. Anyone got the contact information for this guy:?
Thread is deleted...
Thread is deleted...
@omeidesen - welcome to the forum. That thread has been deleted, so the direct post link won't resolve. I can't hand out personal contact details for individual sellers - that's not something I'd do even if I had them, partly for the seller's privacy and partly because vetting third-party tuning services isn't something I can do reliably.
What I can tell you is that the thread was discussing a remote service offering US-region firmware (32km/h cutoff) on Bosch Smart System motors for around €35. If that's what you're after, the broader conversation about how it works and what the risks are is still live here: https://www.emtbforums.com/threads/26351/
@TrekPwrfly's post in that thread is worth reading - particularly the note about 542001 errors from previous tuning attempts. The risk of a Bosch Smart System logging a modification and flagging it isn't zero.
If your goal is simply keeping the motor assisting on fast trail descents, it's also worth reading back through this thread - the half-wheel-circumference approach via an authorised dealer is lower-risk than a remote firmware swap, though it comes with its own caveats.
What bike are you running, and what's the specific problem you're trying to solve? Might be able to point you somewhere more useful.
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