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| Image |  |  | - | - |
|---|---|---|---|---|
| Product | AUTHOR Traction 27,5 2020 | AUTHOR Aura 55 2020-21 | - | - |
| Code | UA#42924601 | UA#42929611 | - | - |
| Model card | link | link | - | - |
| Size | 15", 17", 19" | 480, 500, 520, 540, 560, 580 mm | - | - |
| Frame | double butted hydroformed alloy 6061 27.5" | triple butted alloy 6061 | - | - |
| Front fork | RST Aerial 27.5 TnL air lock out (100 mm) | AUTHOR C carbon 1.5" tapered | - | - |
| Head parts | AUTHOR Integrated 1.5" tapered | PRESTINE Integrated 1.5" tapered | - | - |
| Chain Wheel | SHIMANO 36-26 teeth 170 / 175 mm cranks | SHIMANO Compact 50-34 teeth 170 / 172.5 / 175 mm cranks | - | - |
| BBParts | SHIMANO BB-52 BB unit | SHIMANO BB-RS500 BB unit | - | - |
| Front derailleur | SHIMANO Deore (34.9) | SHIMANO 105 | - | - |
| Rear derailleur | SHIMANO Deore | SHIMANO 105 | - | - |
| Shifters | SHIMANO Deore (20) | SHIMANO 105 (22) | - | - |
| Free wheel | SHIMANO HG500-10 11-42 (10) | SHIMANO R7000 11-32 (11) | - | - |
| Chain | KMC X10 | KMC X11 EL | - | - |
| Hubs | AUTHOR Radon 32 holes | MAVIC Aksium wheel set 20 holes | - | - |
| Brakes | TEKTRO Gemini disc hydraulic (6" rotors) | TEKTRO R313 | - | - |
| Brakes levers | TEKTRO Gemini | SHIMANO 105 | - | - |
| Rims | AUTHOR Xenon Pro 27.5 32 holes | - | - | - |
| Spokes | stainless steel hi-ten 2.0 mm black | MAVIC | - | - |
| Tires | VITTORIA Barzo kevlar 27.5" x 2.25" | VITTORIA Zaffiro Pro kevlar 700 × 28c | - | - |
| Pedals | AUTHOR alloy | - | - | - |
| Handlebar | AUTHOR 9° 680 / 700 mm | RITCHEY Streem II Comp Road 420 / 440 mm | - | - |
| Grips | AUTHOR Pro Lock | - | - | - |
| Stem | AUTHOR alloy | RITCHEY Comp 4-Axis | - | - |
| Seat post | AUTHOR alloy (31.6) | RITCHEY Comp Carbon (27.2) | - | - |
| Seat clamp | AUTHOR (34.9) | AUTHOR (31.8) | - | - |
| Saddle | AUTHOR Navigator | AUTHOR Aura CR | - | - |
| Speed | 20 | 22 | - | - |
| Weight | 12,8 kg /17" | 9 kg /54 | - | - |
| Wheel set | - | MAVIC Aksium wheel set 20 holes | - | - |
| Tapes | - | AUTHOR microfiber / gel | - | - |
