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The 2023 KAYZA Hydric Dry 8.9 Hardtail is a versatile e-bike that stands out for its robust construction and high-quality features. Priced at 3999 EUR, it offers a wide range of features suitable for both everyday use and more demanding rides. The frame is made from 6061 aluminium and is specifically designed to integrate the Bosch system. With a frame height of 52 cm and a maximum permissible weight of 130 kg, the bike is stable and reliable.
The braking system comprises SRAM “DB8 DFBA 20P” components, which ensure safe deceleration. Both the front and rear are fitted with 180 mm SRAM “DB Centerline” brake discs, which guarantee consistent braking performance. The drivetrain is a 12-speed SRAM “SX Eagle”, which, together with the Single Click Trigger shifter, enables precise gear changes. The drivetrain is assisted by a 4th-generation Bosch “Performance CX” mid-drive motor with an output of 250 W, whilst the Bosch “PowerTube 625” battery, with a capacity of 625 Wh, ensures a long-lasting power supply.
Suspension is provided by a SUNTOUR “SF18-XCR34-AIR Boost-LOR-DS-15QLC32-110-29” fork with 120 mm of travel, which effectively absorbs bumps. Comfort is ensured by the SR “Vivo Sport Ergo” saddle and the CONTEC “MTB Small Wing long” grips. The CONTEC “Moab” handlebars, with a diameter of 31.8 mm and a width of 740 mm, offer comfortable handling.
The bike is fitted with CONTI “Contact Urban” tyres mounted on KAYZA “X18” hollow-section rims, offering a good balance between grip and rolling resistance. The FORMULA hubs – the “DC-511” at the front and the “EHL-148S” at the rear – ensure smooth rotation. Other features include a CONTEC “DLUX 80 E+” front light and a CONTEC “CTL 335 E-Stop” rear light, which ensure sufficient visibility in the dark.
Practical features such as the ATRAN “Tour Sport” luggage rack, SKS “A65 R” mudguards and the URSUS “Mooi R90” kickstand round off the overall package. The bike is fitted with a CONTEC “Powerlock” battery lock for added security. The Bosch “Intuvia 100” display offers a user-friendly interface for controlling the e-bike and displaying important information whilst riding. With all these features, the KAYZA Hydric Dry 8.9 hardtail is a reliable and high-performance e-bike that performs well both in the city and in the countryside.
| Front brakes | DB "DB8 DFBA 20P" |
| Brakes | SRAM "DB8 DFBA 20P" |
| Front brake disc | SRAM "DB Centerline", 180 mm |
| Rear brake disc | SRAM "DB Centerline", 180 mm |
| Brake levers | SRAM "DB8 DFBA 20P" |
| Frame | KAYZA Bosch integrated, 6061 aluminium hardtail, 52 cm |
| Drivetrain | 12-speed SRAM "SX Eagle" |
| Shift levers | SRAM "SX Eagle Single Click Trigger" |
| Number of gears | 12 |
| Fork | SUNTOUR "SF18-XCR34-AIR Boost-LOR-DS-15QLC32-110-29", tapered, matt black |
| Fork travel (mm) | 120 |
| Bottom bracket | BOSCH |
| Crankset | MIRANDA 172.5 mm |
| Sprocket | SRAM "CR Eagle" 38 teeth SRAM "PG-1210", 11–50 teeth |
| Drive | SRAM "CN SX Eagle 183M", 12-speed, brown |
| Headset | VP "J313AE", tapered, 1 1/8-1.5", black |
| 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 tire | CONTI "Contact Urban", 60-622, Reflex |
| Rear tire | CONTI "Contact Urban", 60-622, Reflex |
| Front hub | FORMULA "DC-511", 32-hole, black |
| Rear hub | FORMULA "EHL-148S", 32-hole, black |
| Spokes | Stainless steel, black |
| Pedals | VP "VPE-506", black |
| Front light | CONTEC "DLUX 80 E+" |
| Rear light | CONTEC "CTL 335 E-Stop" |
| Mudguards | SKS "A65 R", plastic |
| Kickstand | URSUS "Mooi R90", 18 mm, black |
| Rack | ATRAN "Tour Sport", black |
| Motor manufacturer / model | BOSCH Gen. 4 "Performance CX" mid-drive motor, 36 V, 250 W |
| Display | BOSCH "Intuvia 100" |
| Battery | BOSCH "PowerTube 625", lithium-ion with BMS, 625 Wh |
| Battery capacity (Wh) | 625 |
| Charger | Bosch 4 A (230 V) |