My thoughts on Bosch SX Motor

JP-NZ

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Morning all,

Today I test rode a Merida One Sixty SL with the Bosch SX and 400wh battery. I didn't want to buy one but they were the only dealer who would do demo rides in my area. Before I go to much further I own both a Gen 4 CX and a TQ HPR50 equipped bikes.

I did a 6km ride with 200m elevation, one ride was enough for me to form an opinion. Now I love my CX equipped Rail it feels as though it can climb anything and when the going gets really steep its nice to know you have EMTB/Turbo (normal rides in Tour+). My TQ equipped Exe on the other hand takes a LOT of effort and HR to climb similar trails.

The reason I wanted to try a SX is the 600w available at higher cadence (vs the 300w max of the TQ) and the extra 5nm over the TQ.

First thoughts, it climbs like 80-85% of the CX, its very impressive for a 55nm motor. It is noisey IMO when pushing hard climbing and it exhibits the same Gen 4 CX rattle on the downs. There was a nice improvement from Tour+ to EMTB when climbing and even though I pushed the motor as hard as it could go it was more powerful than the TQ easily.

Its very impressive what Bosch has done with the motor, I can't give you a range estimation but a few of the dealers doing the demo said 30km with 800-900m elevation was possible on a full charge.

In the 50/60nm area If motor noise (whine/rattles) bother you then a TQ is probably more up your alley (TQ is silent up and down). But if your after an almost full fat in a much lighter proposition then the Bosch SX is great.


Overall I'd take marks off for Noise/Rattle (similar to my CX) but only minor IMO so 8.5/10. If a frame and spec comes along that I like under 20kg then I could be very tempted.

Cheers
 
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Today I test rode a Merida One Sixty SL with the Bosch SX and 400wh battery
What were your thoughts on the Merida - I'm interested in one but wasn't sure about the lower power motor (currently riding an EP8), but sounds like it might be OK. But the bike itself?
 
What were your thoughts on the Merida - I'm interested in one but wasn't sure about the lower power motor (currently riding an EP8), but sounds like it might be OK. But the bike itself?
I like the bike, but was really only riding it for 25 mins and the motor was my main point of reference.

Sorry can't go into more depth on the bike, would be unfair when it wasn't supposed to be a bike review as such. Very good spec to dollars though.
 
Its in the right area, although super expensive over here in NZ. The XT regulator is $18,250 NZD or the Norco Fluid VLT C2 is $10,999. Norco has lower spec and 1kg heavier but for that price...

In Germany, you can get the C2 for 4000€ in sale. The weight was 20kg without pedals, now I have 18,7kg with mallet E pedals.
The stock parts are really heavy!!
 
I was told by my local Trek dealer that the TQ is releasing a HPR60 to replace the HPR50. Didn’t say when but said it would be on the slightly updated Fuel EXe and on the newer model Slash+.
Be nice if they upped the max power to say 450-500 watts rather than the 300w max currently
 
Do you know what your cadence was and if you did any lower cadence work/slow slogging up a hill how did it compare with the tq. Ta
 
Do you know what your cadence was and if you did any lower cadence work/slow slogging up a hill how did it compare with the tq. Ta
No sorry, didn't use the app on demo ride. The TQ loves higher cadence as does the SX. Overall the main difference IMO is the 600w max vs 300w max on the TQ. If you use a slower cadence I feel the SX would benefit slightly better. The TQ sucks at low cadences.

SX beats it in all cadences, which is understandable.
 
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I was told by my local Trek dealer that the TQ is releasing a HPR60 to replace the HPR50. Didn’t say when but said it would be on the slightly updated Fuel EXe and on the newer model Slash+.
Thanks for that news! I'm really liking the 580wh battery with the TQ motor on the Slash+. Have yet to run the battery dead (only ~6 rides in). Ride so far have been around 1000m of vert, and I'm finishing with 30-40% battery left.
With the smaller motor and larger battery, it's like having almost unlimited range in HR zone 3 / trail mode.

It may not be a reasonable wish, but it would be AWESOME if this new HPR60 used the same mounting as the HPR50.

Along the same lines, I think the SX motor with the bosch 600w battery would be amazing for range. And it seems possible with a Vala, Regulator etc.
 
Along the same lines, I think the SX motor with the bosch 600w battery would be amazing for range. And it seems possible with a Vala, Regulator etc.
The Vala only has CX motor but a SX regulator with Bosch 250 powermore (650wh total) would be able to do some big distance too.
 
Any news regarding new software ala Bosch CX5? Specifically, if it's gonna get the eMTB+ mode too? Maybe a power bump to let's say 60nm?!

Cheers
I believe 60nm is going to be an update along with 400% support vs 340% or something it offers now. Makes it a very interesting bike to me if it can do that.
 
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