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| Image |  |  | - | - |
|---|---|---|---|---|
| Product | AUTHOR Compact 2016 | AUTHOR Spirit 2017 | - | - |
| Code | UA#42865402 | UA#42875001 | - | - |
| Model card | link | link | - | - |
| Size | 18", 20", 22" | 15", 17", 19", 21" | - | - |
| Frame | alloy 6061 700c | hydroformed alloy 6061 27.5" | - | - |
| Front fork | RST Neon T (60 mm) | RST Blaze 27.5 Tnl oil, lock out (100 mm) | - | - |
| Head parts | VP COMP 1-1/8" | AUTHOR Integrated 1.5" tapered | - | - |
| Chain Wheel | PROWHEEL 48-38-28 teeth 170 mm cranks | SHIMANO M4000 40-30-22 teeth 170 / 175 mm cranks | - | - |
| BBParts | VP COMP cartridge | SHIMANO ES300 Octalink | - | - |
| Front derailleur | SHIMANO TX51 (31.8) | SHIMANO Acera (34.9) | - | - |
| Rear derailleur | SHIMANO TX55 | SHIMANO Alivio | - | - |
| Shifters | SHIMANO Revoshift (21) | SHIMANO Alivio (27) | - | - |
| Free wheel | SHIMANO MF-TZ21 14-28 (7) | SHIMANO HG400-9 11-34 (9) | - | - |
| Chain | KMC Z51 | KMC Z99 | - | - |
| Hubs | QUANDO 36 holes | QUANDO Disc 32 holes | - | - |
| Brakes | TEKTRO 855 | TEKTRO Auriga disc hydraulic (6" rotors) | - | - |
| Brakes levers | TEKTRO plastic / alloy | TEKTRO Auriga | - | - |
| Rims | alloy 36 holes | AUTHOR Xenon 27.5 32 holes | - | - |
| Spokes | steel | black steel | - | - |
| Tires | AUTHOR Speed Master 700 x 42c | AUTHOR Rocket 27.5" x 2.10" | - | - |
| Pedals | resin | AUTHOR alloy | - | - |
| Handlebar | steel 20 mm 660mm | AUTHOR 9° 660 / 680 mm | - | - |
| Grips | AUTHOR high density foam | AUTHOR high density foam | - | - |
| Stem | ZOOM alloy | AUTHOR alloy | - | - |
| Seat post | ZOOM alloy (27.2) | AUTHOR alloy (31.6) | - | - |
| Seat clamp | AUTHOR (31.8) | AUTHOR (34.9) | - | - |
| Saddle | AUTHOR Courier | AUTHOR Navigator | - | - |
| Speed | 21 | 27 | - | - |
| Weight | 13.8 kg / 20" | 14,5 kg / 19" | - | - |
