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The "Sonic EVO AM 1 29/27.5" model from Bulls, released in 2023, offers an impressive combination of advanced technology and robust construction at a price of 4,799 EUR. The frame is made from 6061 aluminium and was manufactured using hydroforming, ensuring high stability and low weight. It is also fitted with a 1.8 steerer tube, internal cable routing and a thru-axle. The maximum load capacity is 150 kg, which speaks to its high load-bearing capacity.
The bike features powerful TRP Slate Evo brakes with a TR203-45 CL front brake disc, ensuring reliable braking performance. The drivetrain consists of a SHIMANO Deore RD-M5120 shadow+ with a SHIMANO Deore SL-M4100 shifter, fitted with I-Spec EV, and offers a total of 10 gears. Suspension is provided by a BULLS Lytro 34 Air LOR fork with 140 mm of travel and an SR SUNTOUR Edge Plus R shock absorber with 150 mm of travel.
In terms of lighting, the bike is fitted with a MonkeyLink Connect front light (not included) and a MonkeyLink Twinlight rear light. The ZECURE MTB pedals provide a secure grip, whilst the BULLS crankset and the SHIMANO Deore 10-speed cassette (11-46T) ensure efficient power transfer. Power is transmitted via a SHIMANO CN-HG54-10 chain.
The handlebars are a Sport-SL CCS model with Proxim Enduro grips, and the stem is an MTB-SLS, CCS Slot Mount-ready. The headset is an acros AZX-262 310.52.570R1. The rims are RODI Tryp 30 and tubeless-ready, fitted with SCHWALBE Magic Mary Perf. Line tyres at the front and Big Betty Perf. Line tyres at the rear, which ensure optimum grip and performance. The hubs are SHIMANO HB-MT400-B Centre Lock at the front and SHIMANO FH-MT400-B Centre Lock at the rear.
The saddle is a Prologo Proxim 400, mounted on a LIMOTEC Alpha 1 seatpost, which offers different adjustment ranges depending on frame size (S: 100 mm, M: 125 mm, L/XL: 150 mm). The bike is powered by a Bosch Performance Line CX motor (Smart System) with an output of 25/85 Nm, combined with a Bosch PowerTube battery (Smart System) with a capacity of 625 Wh. The display can be flexibly combined with the Mini Remote, Kiox 300, SmartphoneGrip, Intuvia 100 or a smartphone. The battery is charged using the Bosch standard 4A charger.
Overall, the “Sonic EVO AM 1 29/27.5” from Bulls offers high-quality components and modern technology for discerning riders who value both performance and comfort.
| Brakes | TRP Slate Evo |
| Frame | 6061 aluminium, hydroformed, 1.8 steerer tube compatible, internal cable routing, thru-axle |
| Drivetrain | SHIMANO Deore RD-M5120 shadow+ |
| Shift levers | SHIMANO Deore SL-M4100 with I-Spec EV |
| Number of gears | 10 |
| Fork | BULLS Lytro 34 Air LOR, 1.8 steerer, Boost |
| Rear shock | SR SUNTOUR Edge Plus R |
| Fork travel (mm) | 140 |
| Rear shock travel (mm) | 150 |
| Crankset | BULLS |
| Sprocket | SHIMANO Deore 10-speed, 11-46T |
| Drive | SHIMANO CN-HG54-10, 10-SPD |
| Headset | acros AZX-262 310.52.570R1 |
| Handlebar | Sport-SL CCS |
| Grips | Proxim Enduro |
| Stem | MTB-SLS, CCS slot mount compatible |
| Saddle | prologo Proxim 400 |
| Seatpost | LIMOTEC Alpha 1, 34.9 / S: 100 mm, M: 125 mm, L/XL: 150 mm |
| Rims | RODI Tryp 30, tubeless-ready |
| Tires | SCHWALBE Magic Mary Perf. Line, TLR, Addix Soft / Big Betty Perf. Line, TLR Speed Grip 62-622 / 65-584 |
| Rear hub | SHIMANO FH-MT400-B Centre Lock |
| Pedals | ZECURE MTB pedals |
| Front light | MonkeyLink Connect (lighting not included in the scope of delivery) |
| Rear light | MonkeyLink Twinlight |
| Motor manufacturer / model | Bosch Performance Line CX (Smart System) 25/85Nm |
| Display | Can be used with: Mini Remote, Kiox 300, SmartphoneGrip, Intuvia 100 or a smartphone |
| Battery | Bosch PowerTube (Smart System) 625 |
| Battery capacity (Wh) | 625 |
| Charger | Bosch Standard Charger 4A |