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| Image |  |  |  | - |
|---|---|---|---|---|
| Product | AUTHOR Spirit 2017 | AUTHOR VITAL 2008 | Compact ASL 2023-24 | - |
| Code | UA#42875001 | UA#42740101 | UA#42947802 | - |
| Model card | link | link | link | - |
| Size | 15", 17", 19", 21" | 9" | 15", 17", 19" | - |
| Frame | hydroformed alloy 6061 27.5" | hi-ten 16" | alloy 6061 (ASL) | - |
| Front fork | RST Blaze 27.5 Tnl oil, lock out (100 mm) | hi-ten | RST Neon T (60 mm) | - |
| Head parts | AUTHOR Integrated 1.5" tapered | VP Comp. 1" | VP COMP 1-1/8" | - |
| Chain Wheel | SHIMANO M4000 40-30-22 teeth 170 / 175 mm cranks | PROWHEEL 36 teeth 127mm cranks | PROWHEEL, 42-34-24 teeth, 170 mm cranks | - |
| BBParts | SHIMANO ES300 Octalink | VP Comp. | VP COMP, cartridge | - |
| Front derailleur | SHIMANO Acera (34.9) | - | SHIMANO TY510 (31.8) | - |
| Rear derailleur | SHIMANO Alivio | - | SHIMANO TY500 | - |
| Shifters | SHIMANO Alivio (27) | - | SHIMANO (21) | - |
| Free wheel | SHIMANO HG400-9 11-34 (9) | coasterhub 16 | SHIMANO MF-TZ510-7, 14-28 (7) | - |
| Chain | KMC Z99 | SHIMANO HP-20 | KMC Z7 | - |
| Hubs | QUANDO Disc 32 holes | steel 36 holes rear coasterhub | QUANDO, 36 holes | - |
| Brakes | TEKTRO Auriga disc hydraulic (6" rotors) | front V alloy | TEKTRO V | - |
| Brakes levers | TEKTRO Auriga | plastic /alloy | SHIMANO | - |
| Rims | AUTHOR Xenon 27.5 32 holes | alloy 36 holes | alloy, 36 holes | - |
| Spokes | black steel | steel | steel | - |
| Tires | AUTHOR Rocket 27.5" x 2.10" | 16" x 1.50" | AUTHOR Cross 700 × 38c | - |
| Pedals | AUTHOR alloy | resin | plastic | - |
| Handlebar | AUTHOR 9° 660 / 680 mm | KALIN steel | steel, 20 mm, 660 mm | - |
| Grips | AUTHOR high density foam | AUTHOR high density foam | AUTHOR high density foam | - |
| Stem | AUTHOR alloy | KALIN steel | ZOOM alloy | - |
| Seat post | AUTHOR alloy (31.6) | KALIN steel (25.4) | ZOOM alloy (27.2) | - |
| Seat clamp | AUTHOR (34.9) | - | AUTHOR (31.8) | - |
| Saddle | AUTHOR Navigator | AUTHOR race-color | AUTHOR Area | - |
| Speed | 27 | 1 | 21 | - |
| Weight | 14,5 kg / 19" | 9.00kg/ 9" | 12,5 kg / 17" | - |
