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The "Hydric Dry 3.9" from KAYZA, launched in 2023, is a versatile e-bike that, at a price of 2,999 EUR, is positioned in an attractive price bracket. The bike’s frame is made from high-quality 6061 aluminium and seamlessly integrates the Bosch system, which comprises both the motor and the battery. With a battery capacity of 500 Wh, the bike offers a solid range for longer rides.
The bike’s specifications are designed with comfort and reliability in mind. It features a hydraulic disc brake combined with ALHONGA “HT472” brake levers, ensuring precise and safe braking performance. The 9-speed SHIMANO “Cues” derailleur ensures smooth adaptation to varying terrain conditions. The RST “Blaze-ML-29” fork, with 120 mm of travel, provides additional stability and shock absorption on uneven terrain.
The CONTEC “MTB Small Wing long” grips and the SR “Vivo Sport Ergo” saddle provide additional comfort. The handlebars, also from CONTEC, have a diameter of 31.8 mm and a width of 740 mm, enabling a comfortable riding position. The CONTEC “Pillar” seatpost, with a length of 400 mm, offers ample adjustment options.
The bike rides on KAYZA hollow-section rims fitted with CONTI “Contact Urban” tyres, which feature reflective strips for improved visibility in traffic. The FORMULA hubs with 32 holes enhance the stability of the wheels. Additional features such as the ATRAN “Tour Sport” luggage rack, SKS “A65 R” mudguards and the URSUS “Mooi R90” kickstand round off the practical design.
The chain guard made from transparent material and the CONTEC “Powerlock” battery lock offer additional protection and security. Overall, the KAYZA Hydric Dry 3.9 is a well-designed e-bike that is suitable for both everyday use and longer rides, whilst offering excellent value for money.
| Front brakes | ALHONGA "HT472", 2-finger, black |
| Brakes | hydraulic disc brake |
| Brake levers | ALHONGA "HT472", 2-finger, black |
| Frame | KAYZA Bosch integrated, 6061 aluminium |
| Drivetrain | 9-speed SHIMANO "Cues" |
| Fork | RST "Blaze-ML-29", 120 mm, tapered, matt black |
| Bottom bracket | BOSCH |
| Handlebar | CONTEC "Moab" Ø 31.8 mm, 740 mm, black |
| Grips | CONTEC "MTB Small Wing long" |
| Stem | CONTEC "Forge" Ø 31.8 mm, 70 mm, black |
| Saddle | SR "Vivo Sport Ergo", black |
| Seatpost | CONTEC "Pillar" Ø 31.6 mm, 400 mm, black |
| Rims | KAYZA "X18" hollow-chamber disc |
| Tires | CONTI "Contact Urban", 60-622, Reflex |
| Front hub | FORMULA "DC-20", 32-hole, black |
| Rear hub | FORMULA "EHL-148S", 32-hole, black |
| Spokes | Stainless steel, black |
| Pedals | VP "VPE-506", black |
| Mudguards | SKS "A65 R", plastic |
| Kickstand | URSUS "Mooi R90", 18 mm, black |
| Rack | ATRAN "Tour Sport", black |
| Motor manufacturer / model | Bosch |
| Battery capacity (Wh) | 500 |