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The "Sonic EVO TR-I 29 Carbon" model from Bulls, released in 2023, is a high-quality e-mountain bike that stands out for its advanced technology and well-thought-out features. The price for this model is 7,199 EUR.
The bike’s frame consists of a carbon fibre monocoque front triangle and is 1.8 steerer-ready. It also features internal cable routing and a thru-axle mounting. This ensures high stability and low weight whilst maintaining robustness.
The model is fitted with TRP C2.3 brakes, whilst the front brake disc is a TR203-45 CL. The drivetrain is a SRAM GX Eagle AXS with a matching shifter, enabling precise and reliable gear selection. A total of 12 gears are available.
The RockShox 35 Gold RL fork, with 130 mm of travel, and the RockShox Deluxe Select+ RT shock, with 120 mm of travel, ensure optimum ride comfort and damping, even on challenging terrain.
The bike is also fitted with a MonkeyLink Connect front light (lighting not included) and a MonkeyLink Twinlight rear light. The ZECURE MTB pedals offer a secure grip, whilst the e*thirteen crankset and the SRAM XG-1275 12-speed Eagle cassette (10-52T) ensure efficient power transfer.
The handlebars are a BULLS Enduro Carbon model with Comfort Sport grips. The stem is an MTB-SLS, CCS Slot Mount ready, and the headset is an acros AZX-262 310.52.570R1. The tyres are SCHWALBE Nobby Nic Perf, Folding 62-622, and the hubs feature a Centre Lock mounting system. The wheelset consists of MAVIC Crossmax Carbon XL S.
The saddle is a Prologo Proxim 400 Wide model, and the seatpost is a LIMOTEC Alpha 1, which is adjustable 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. The battery is a Bosch PowerTube (Smart System) with a capacity of 625 Wh and is charged using a Bosch Standard 4A charger. The display can be paired with the Kiox 300, SmartphoneGrip, Intuvia 100 or a smartphone.
In summary, the Sonic EVO TR-I 29 Carbon from Bulls offers a well-designed and high-performance all-round package for discerning e-mountain bike riders.
| Brakes | TRP C2.3 |
| Frame | carbon fibre monocoque front triangle, 1.8 steerer tube compatible, internal cable routing, thru-axle |
| Drivetrain | SRAM GX Eagle AXS |
| Shift levers | SRAM GX AXS |
| Number of gears | 12 |
| Fork | RockShox 35 Gold RL, 1.8 tapered |
| Rear shock | RockShox Deluxe Select+ RT |
| Fork travel (mm) | 130 |
| Rear shock travel (mm) | 120 |
| Crankset | e*thirteen |
| Sprocket | SRAM XG-1275 12-speed Eagle 10-52T |
| Drive | SRAM Eagle GX |
| Headset | acros AZX-262 310.52.570R1 |
| Handlebar | BULLS Enduro Carbon |
| Grips | Comfort Sport |
| Stem | MTB-SLS, CCS slot mount compatible |
| Saddle | prologo Proxim 400 wide |
| Seatpost | LIMOTEC Alpha 1, 34.9 / S: 100 mm, M: 125 mm, L/XL: 150 mm |
| Wheelset | MAVIC Crossmax Carbon XL S |
| Tires | SCHWALBE Nobby Nic Perf, Folding 62-622 |
| 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 in combination with: Kiox 300, SmartphoneGrip, Intuvia 100 or a smartphone |
| Battery | Bosch PowerTube (Smart System) 625 |
| Battery capacity (Wh) | 625 |
| Charger | Bosch Standard Charger 4A |