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| Image |  |  |  | - |
|---|---|---|---|---|
| Product | AUTHOR Aura XR6 2021-22 | AUTHOR Ultrasonic 27,5 2020 | AUTHOR Spirit 29 2020 | - |
| Code | UA#39902502 | UA#42922201 | UA#42924202 | - |
| Model card | link | link | link | - |
| Size | 500, 520, 540, 560, 580 mm | 14", 16" | 17", 19", 21" | - |
| Frame | triple butted alloy 6061 | triple butted hydroformed alloy 6061 27.5" | hydroformed alloy 6061 29" | - |
| Front fork | AUTHOR carbon 1.5" tapered | RST F1RST 27.5 air lock out (80 mm) | RST Aerial 29 TnL air lock out (100 mm) | - |
| Handlebar | RITCHEY Road ErgoMax 420 / 440 / 460 mm | AUTHOR Flat Top bar 9° 620 / 640 mm | AUTHOR Flatbar 9° 700 / 720 mm | - |
| Head parts | - | AUTHOR Integrated 1.5" tapered | AUTHOR Integrated 1.5" tapered | - |
| Chain Wheel | - | SUNTOUR Zeron 32 teeth 160 / 170 mm cranks | SHIMANO M4000 40-30-22 teeth 170 / 175 mm cranks | - |
| BBParts | - | SUNTOUR BB unit | SHIMANO ES300 Octalink | - |
| Rear derailleur | - | SHIMANO SLX | SHIMANO Alivio | - |
| Shifters | - | SHIMANO SLX (11) | SHIMANO Alivio (27) | - |
| Free wheel | - | SHIMANO M7000-11 11-46 (11) | SHIMANO HG400-9 11-34 (9) | - |
| Chain | - | SHIMANO HG601 | KMC Z9 | - |
| Hubs | - | AUTHOR Xenon 32 holes | QUANDO Disc 32 holes | - |
| Brakes | - | PROMAX disc hydraulic (6" rotors) | TEKTRO Auriga disc hydraulic (7" rotors) | - |
| Brakes levers | - | PROMAX | TEKTRO Auriga | - |
| Rims | - | AUTHOR Xenon Pro 27.5 32 holes | AUTHOR Xenon Pro 29 32 holes | - |
| Spokes | - | stainless steel hi-ten 2.0 mm black | hi-ten black | - |
| Tires | - | CST B-Trail kevlar 27.5" x 2.25" | AUTHOR Rocket 29" x 2.10" | - |
| Grips | - | AUTHOR kratton rubber | AUTHOR Pro Lock | - |
| Stem | - | AUTHOR alloy | AUTHOR alloy | - |
| Seat post | - | AUTHOR alloy (31.6) | AUTHOR alloy (31.6) | - |
| Seat clamp | - | AUTHOR (34.9) | AUTHOR (34.9) | - |
| Saddle | - | AUTHOR Champion CR | AUTHOR Navigator | - |
| Speed | - | 11 | 27 | - |
| Weight | - | 11,5 kg /16" | 14,4 kg /19" | - |
| Front derailleur | - | - | SHIMANO Alivio (34.9) | - |
| Pedals | - | - | AUTHOR alloy | - |
