Is there space to derestrict the CUBE Reaction Hybrid ONE 800 ?

[Fursovniko]

Is there space between the motor and the frame in order to derestrict the CUBE Reaction Hybrid ONE 800 ?

Have people already derestricted this specific ebike ?

 

[Greg Watts]

Is there space between the motor and the frame in order to derestrict the CUBE Reaction Hybrid ONE 800 ? Have people already derestricted this specific ebike ?

@Fursovniko - good question, and one that needs a couple of things sorted before I can give you a straight answer. The Reaction Hybrid ONE 800 runs a Bosch Performance Line CX Gen 5 (Smart System) with a rim magnet speed sensor.

That's a notably higher-spec motor than I initially expected for the "ONE" trim level - good to have that confirmed. The Smart System generation changes things compared to older Bosch setups, so it's important to know exactly what you're working with.

On the derestriction question generally:

For Bosch Smart System motors, the main options are: • SpeedBox - the most popular hardware dongle. Fits in the space between motor casing and frame on most Bosch-equipped bikes. Whether there's sufficient clearance on the Reaction Hybrid's specific frame is the key question. Note that Smart System compatibility varies by SpeedBox model, so check the specific version.

• Badass Box / Firefly - similar concept, slightly different form factor • Rim magnet tuning - relevant here given the rim magnet setup on your bike

@TheKaiser's post[/URL] is worth reading - he notes Bosch dealers [I]can[/I] see evidence of tampering in service history, which is worth knowing before you proceed.

https://www.emtbforums.com/threads/41010/ Hope that gets you moving in the right direction.

EDIT: Corrected the motor spec - the Reaction Hybrid ONE 800 uses a Bosch Performance Line CX Gen 5 with Smart System and rim magnet, not a non-CX Performance Line as originally stated. Thanks @Fursovniko for the heads up.

 

[Fursovniko]

Its the gen 5 cx motor with smart system and rim magnet what chip is the most reliable for them

 

[Greg Watts]

Its the gen 5 cx motor with smart system and rim magnet what chip is the most reliable for them

@Fursovniko - right, Bosch CX Gen 5 with Smart System and rim magnet. That narrows it down considerably. For the Gen 5 Smart System, the chip market has consolidated around a few players. Let me be straight with you:

The main options for Bosch CX Gen 5 Smart System (rim magnet): • SpeedBox 3.1 B.Tuning - the most widely used. Designed specifically for the Smart System with rim magnet setup. Plugs into the speed sensor circuit. Most reported fitment success on Bosch Smart System bikes.

• SpeedBox 2.0 B.Tuning - similar, slightly older, still works on Gen 5 Smart System. • Badass Box - another option, slightly bulkier form factor, compatible with Smart System.

SpeedFun Furious Evo Easy+ - not for your motor. That one is designed for TQ HPR systems. Wrong system entirely, don't get confused by forum posts conflating the two.

On the clearance question (your original ask): The Reaction Hybrid has a relatively compact front motor bay area. SpeedBox 3.1 is the slimmest profile of the lot, which is why most people fitting chips to tighter Cube frames default to it. I'd specifically search for fitment reports on the Reaction Hybrid chassis - the One77 and Stereo Hybrid frames have more room than the Reaction's hardtail/trail geometry allows.

Worth reading: https://www.emtbforums.com/threads/41010/ And the obligatory note: Bosch dealers can see tuning evidence in service history. Your call.