Bulls SONIC EVO AM SX 1 Review

The ultra-flat top tube and the skilled line work give the SONIC EVO AM SX 1 a futuristic aesthetic. The integrated lights complement it perfectly. But it's the bike's riding characteristics that really shine on the trail.
Bosch is the major motor manufacturer in the EMTB world, alongside Shimano - and it's no surprise, as the SX shows. The Swabians from Bosch are sending their first light engine into the race with the SX. With 55 Nm torque, this unit places exactly in the middle between Fazua's Ride 6 and TQ's HPR 5. However, it delivers up to 6 watts of support, similar performance figures to the popular Bosch CX. The starting behavior remains progressive. The complete motor control is very $natural. In terms of installation space and sound, the small Bosch can't quite keep up with its competitors from the Light segment. Fans of XXL tours are greatly restricted by the SONIC EVO AM SX 1 , because of its low range.

At a glance

The most importanten ratings of the SONIC EVO AM SX 1 in comparison to the competitor bikes of following categorie: (6000) .

Carbon frames are rather the exception in the price range of about 6€. With the carbon fibre chassis, Bulls thus sets clear accents compared to the aluminium competitors. The low-grade chassis transfers shocks relatively clearly to the biker. Especially for heavy riders, the Bulls brakes could be a problem. With four pistons they only decelerate averagely. The drivetrain and components have a subordinate but not to be neglected importance when it comes to EMTB. Even the bike brand product managers know this and don't aim too high with mostly average components. When it comes to the geometry, Bulls does not go completely crazy. The head tube angle and reach values were chosen with care. The result: A balanced riding behaviour with a good combination of playfulness and straight-line stability. The bottom bracket is high, which costs handling points. This tends to make the rider stand on the bike. On other EMTBs it feels better integrated. Due to the short chainstays and the shallow seat angle , when climbing steep sections, it requires active weight shifting to prevent the front wheel from lifting. For the good geometry, the developer team of Bulls definitely deserves props. Such a knack for detail in geometry is rarely seen. On the scale, the SONIC EVO AM SX 1 makes a good figure with 19,6 kg. Most Trailbikes are significantly heavier.

Value for money

If you are keen on value for money, this is your chart. It shows you at a glance how much bike you get for 5999 €.

Conclusion


Expirience with the Bulls SONIC EVO AM SX 1

The SONIC EVO AM SX 1 isnt`t a specialist on the trail. Despite a weak chassis and a middle ground brake system, it remains thanks to an extremely good handling and a very good motor a solid all-rounder with a wide range of use.
Ludwig Döhl - emtb-test.com
Bulls SONIC EVO AM SX 1 Review
Ludwig Döhl
Bike enthusiast and founder of emtb-test.com

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technical Details

Je steiler der Winkel des Sitzrohrs ist, desto effizienter können Sie in die Pedale treten.

SIZE XXS XS S M L XL XXL
Sizing of Manufacturer
-
-
S
M
L
XL
-
Wheelsize
-
-
29
29
29
29
-
Stack
-
-
624
633
650
669
-
Reach
-
-
420
450
470
490
-
Top Tube Length
-
-
580
620
640
663
-
Seat Tube Length
-
-
400
440
470
510
-
Seat Tube Angle
-
-
75
75
75
75
-
Head Tube Length
-
-
100
110
130
140
-
Head Tube Angle
-
-
65,5
65,5
65,5
65,5
-
Bottom Bracket Drop
-
-
37,5
37,5
37,5
37,5
-
Bottom Bracket Height (absolut)
-
-
-
-
-
-
-
Chainstay Length
-
-
450
450
450
450
-
Wheelbase
-
-
1184
1218
1246
1270
-
Standover Height
-
-
-
-
-
-
-
  • Motor Bosch SX
  • Display Mini Remote
  • Battery 400
  • Frame Sonic SX
  • Frame Material Carbon
  • Fork BULLS Lytro 34 SL Air Boost
  • Spring Unit air
  • Remote-Lockout yes
  • Damper SR SUNTOUR Edge Plus 2CR
  • Gearrange 510%
  • Drivetrain 12
  • Gear Lever SHIMANO Deore SL-M6100, rapidfire+, I-spec-EV
  • Rear Derailleur SHIMANO Deore RD-M6100
  • Crank BULLS 170 mm
  • Cassette SHIMANO Deore, CS-M6100 10-51T
  • Chain SHIMANO CN-M6100-12
  • Brake Set SHIMANO BR-MT420
  • Brake Rotors 203/203
  • Wheel Set MAVIC E-Crossride 1 CL MS
  • Tires Front Schwalbe Wicked Will Performance
  • Tires Rear Schwalbe Nobby Nic
  • Saddle prologo Proxim 400
  • Seat Post Limotec Alpha 1UH 31,6mm + SL-MT500-IL, 150 mm
  • Stem MTB-SLS, CCS Slot Mount ready
  • Handle Bar BULLS riserbar
  • Handle Bar Width 780
  • Head Set ACROS AIF-531 1.5”
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