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| Image |  |  |  | - |
|---|---|---|---|---|
| Product | AUTHOR Cosmic 20 2021-22 | AUTHOR Instinct 29 2016 | AUTHOR Grand ASL 2020 | - |
| Code | UA#42931701 | UA#42864202 | UA#42927301 | - |
| Model card | link | link | link | - |
| Size | 10" | 17", 19", 21" | 15", 17", 19" | - |
| Frame | alloy 6061 20" | double butted hydroformed alloy 6061 29" | alloy 6061 29" (ASL) | - |
| Front fork | hi-ten | RST F1RST 29 15 air, lock out (100 mm) | RST Vita TnL oil, lock out (80 mm) | - |
| Head parts | VP COMP 1-1/8" | FSA Integrated 1-1/8" | AUTHOR Integrated 1-1/8" | - |
| Chain Wheel | PROWHEEL 36 teeth 127 mm cranks | SHIMANO Deore 40-30-22 teeth 170 / 175 mm cranks | SUNTOUR NCX 44-32-22 teeth 170 mm cranks | - |
| BBParts | VP COMP | SHIMANO BB52 BB unit | SUNTOUR XCT cartridge | - |
| Rear derailleur | SHIMANO TY200 | SHIMANO XT | SHIMANO Acera | - |
| Shifters | SHIMANO Revoshift (6) | SHIMANO Deore (30) | SHIMANO Acera (27) | - |
| Free wheel | SHIMANO MF-TZ510-6 14-28 (6) | SHIMANO HG50-10 11-36 (10) | SHIMANO HG400-9 11-34 (9) | - |
| Chain | KMC Z6 | SHIMANO HG54 | KMC Z9 | - |
| Hubs | QUANDO 20 holes | AUTHOR Helium 15 / Xenon 15 x 100mm thru axle 32 holes | QUANDO Disc 32 holes | - |
| Brakes | TEKTRO V | SHIMANO Alivio disc hydraulic (7" rotors) | TEKTRO Vela disc hydraulic (6" rotors) | - |
| Brakes levers | TEKTRO plastic / alloy | SHIMANO Alivio | TEKTRO Vela | - |
| Rims | alloy 20 holes | AUTHOR Radon Pro 29 32 holes | AUTHOR Xenon 29 32 holes | - |
| Spokes | black steel | black stainless steel 2.0 mm | stainless steel hi-ten 2.0 mm black | - |
| Tires | AUTHOR Speed Master 20" × 1.75" | VITTORIA Barzo kevlar 29" x 2.10" | AUTHOR Speed Master 29" x 1.75" | - |
| Pedals | resin | SHIMANO M520 clipless | AUTHOR Non Slip alloy | - |
| Handlebar | alloy 20 mm 540 mm | AUTHOR Flatbar 0 mm 700 mm | AUTHOR 25 mm 660 / 680 mm | - |
| Grips | AUTHOR kratton rubber | AUTHOR Pro Lock | AUTHOR ErgoGrip Lock | - |
| Stem | alloy | AUTHOR alloy | UNO adjustable | - |
| Seat post | alloy (27.2) | AUTHOR alloy (31.6) | AUTHOR alloy (27.2) | - |
| Seat clamp | AUTHOR (31.8) | AUTHOR (34.9) | AUTHOR (31.8) | - |
| Saddle | AUTHOR Pilot | AUTHOR Summit | AUTHOR Area Gel | - |
| Speed | 6 | 30 | 27 | - |
| Weight | 8,8 kg / 10" | 12.9 kg / 19" | 14,5 kg /17" | - |
| Front derailleur | - | SHIMANO Deore (34.9) | SHIMANO Altus (31.8) | - |
