Cube Reaction Hybrid Rookie SL 400 teamline

The 2021 “Reaction Hybrid Rookie SL 400 teamline” model from Cube is a high-quality e-mountain bike featuring a comprehensive range of features and modern technology. Priced at 2249 EUR, this bike offers excellent value for money.

The frame is made from Superlite aluminium and was manufactured using gravity casting. It features Agile Ride Geometry, a tapered head tube and internal cable routing. The frame is also designed for full battery integration and offers mounting points for a kickstand, mudguards and a luggage rack. The bike’s total weight is 22 kg.

Braking performance is provided by Magura (MT Thirty) hydraulic disc brakes with 2-piston calipers at both the front and rear, with the front brake disc measuring 180 mm in diameter and the rear 160 mm. Gear changes are handled by a Shimano Deore RD-M4120-SGS 10-speed rear derailleur, combined with a Shimano Deore SL-M4100R Rapidfire-Plus shifter.

The SR Suntour XCR32 Air LO-R suspension fork offers 100 mm of travel and ensures good comfort and control on rough terrain. The pedals are CUBE PP MTB, whilst the crankset is an ACID E-Crank with 38 teeth and a length of 165 mm. The cassette is a Shimano Deore CX-M4100 with a 11–42-tooth range, and power is transmitted via a KMC X10 chain.

The handlebars are CUBE Rise Trail Bars with a width of 680 mm, complemented by CUBE Performance grips. The stem is a CUBE Performance Stem Pro with a diameter of 31.8 mm. The headset is an ACROS AZX-1041 BlockLock with a 135° angle, featuring a 1 1/8" zero-stack top tube (ZS 44 mm) and a 1 1/2" zero-stack bottom tube (ZS 56 mm).

The rims are CUBE EX23, tubeless-ready and feature 32 spoke holes. The bike is fitted with Schwalbe Smart Sam tyres in size 2.25, which are equipped with K-Guard puncture protection. The hubs are from Shimano: the front is an HB-TX506 with a quick-release skewer and 6-bolt mount, whilst the rear is an FH-TX506, also with a quick-release skewer and 6-bolt mount.

The saddle is a Natural Fit Venec, mounted on a CUBE Performance seatpost with a diameter of 30.9 mm. The saddle is clamped in place using a CUBE Varioclose clamp with a diameter of 34.9 mm.

Power is provided by a Bosch Drive Unit Active Plus Generation 3 motor with a torque of 50 Nm and an output of 250 watts. The battery is a Bosch PowerTube 400, and the display is the Bosch Purion, which enables simple and intuitive control.

Overall, the Cube Reaction Hybrid Rookie SL 400 teamline is a well-designed e-mountain bike that impresses in terms of both performance and features, making it an attractive choice for discerning riders.