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| Image |  |  |  | - |
|---|---|---|---|---|
| Product | AUTHOR Ultrasonic 26 2018 | AUTHOR Bicycle Traction 2014 | AUTHOR VIVA 2009 | - |
| Code | UA#42891801 | UA#42823401 | UA#42767601 | - |
| Model card | link | link | link | - |
| Size | 13.5' | 15", 17", 19", 21" | 17", 19" | - |
| Frame | triple butted hydroformed alloy 6061 26' | double butted alloy 6061 27.5" | alloy 6061 700C (L) | - |
| Front fork | alloy 6061 26' | RST Aerial 650B TnL air, lock out (100 mm) | RST Sofi T (50 mm) | - |
| Head parts | AUTHOR Integrated 1.5' tapered | AUTHOR Integrated 1.5" tapered | Prestine 1" | - |
| Chain Wheel | SRAM 32 teeth 155 mm cranks | SUNTOUR XCR-T424 44-32-22 teeth 170 / 175 mm cranks | SUNTOUR CW7 38 170 mm cranks | - |
| BBParts | SRAM BB unit | SUNTOUR XCM cartridge | VP Comp. cartridge | - |
| Rear derailleur | SRAM NX-1 | SHIMANO Deore | - | - |
| Shifters | SRAM NX-1 (11) | SHIMANO Alivio (27) | SHIMANO Nexus 3 (3) | - |
| Free wheel | SRAM PG1130 11-42 (11) | SHIMANO HG-50-9 11-34 (9) | 16T | - |
| Chain | SRAM CN-1100 | SHIMANO HG-53 | SHIMANO UG-51 | - |
| Hubs | AUTHOR Xenon 32 holes | AUTHOR Xenon Disc 32 holes | QUANDO 36 holes SHIMANO Nexus 36 holes | - |
| Brakes | PROMAX disc hydraulic (6' rotors) | TEKTRO Draco WH disc hydraulic (7" rotors) | TEKTRO 55AL | - |
| Brakes levers | PROMAX | TEKTRO Draco WH | TEKTRO plastic / alloy | - |
| Rims | AUTHOR Argon 26 32 holes | AUTHOR Radon 27.5" black 32 holes | ALEX Z-1000 36 holes | - |
| Spokes | black stainless steel 2.0 mm | black stainless steel 2.0 mm | stainless steel 2.0 mm | - |
| Tires | VITTORIA Barzo kevlar 26' x 2.10' | GEAX Mezcal White Black 27.5" x 2.10" | CST C-1447 700 x 40c | - |
| Pedals | alloy | AUTHOR alloy | AUTHOR anti-slip | - |
| Handlebar | AUTHOR 0 mm 600 mm | AUTHOR 15 mm 620 / 640 / 660 mm | KALLOY alloy 45 mm riser | - |
| Grips | AUTHOR high density foam | AUTHOR Pro Lock | AUTHOR ErgoGrip | - |
| Stem | AUTHOR alloy | AUTHOR alloy | UNO alloy adjustable | - |
| Seat post | AUTHOR alloy (31.6) | AUTHOR alloy (31.6) | UNO alloy suspension (27.2) | - |
| Seat clamp | AUTHOR (34.9) | AUTHOR (34.9) | AUTHOR (31.8) | - |
| Saddle | AUTHOR Champion CR | AUTHOR Navigator | AUTHOR Tour Gel Lady | - |
| Speed | 11 | 27 | 3 | - |
| Weight | 10,6 kg / 13,5' | 13,8 kg / 19" | 15.60 / 19" | - |
| Front derailleur | - | SHIMANO Alivio (34.9) | - | - |
