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| Image |  |  |  |  |
|---|---|---|---|---|
| Product | AUTHOR Grand 2019 | AUTHOR ERA 2.0 2009 | AUTHOR Quanta 2015 | AUTHOR Aura 55 2018 |
| Code | UA#42909701 | UA#42764501 | UA#42832901 | UA#42899701 |
| Model card | link | link | link | link |
| Size | 16", 18", 20", 22" | M, L, XL | 16", 18" | 480, 500, 520, 540, 560, 580 mm |
| Frame | alloy 6061 29" | alloy 6061, suspension | alloy 6061 26" (L) | triple butted alloy 6061 |
| Front fork | RST Vita TnL oil, lock out (80 mm) | RST Titan Air air, lock out (130 mm) | RST Gila 26 T (80 mm) | AUTHOR C carbon 1.5' tapered |
| Head parts | AUTHOR Integrated 1-1/8" | RITCHEY Zero Logic Integ Comp 1-1/8" (ahead) | PRESTINE 1-1/8" | PRESTINE Integrated 1.5' tapered |
| Chain Wheel | SUNTOUR NCX 48-36-26 teeth 170 / 175 mm cranks | SHIMANO M532 44-32-22 170 / 175 mm cranks | SUNTOUR XCT-T312 42-32-22 teeth 170 mm cranks | SHIMANO Compact 50-34 teeth 170 / 172.5 / 175 mm cranks |
| BBParts | SUNTOUR XCT cartridge | SHIMANO M532, BB unit | SUNTOUR XCT cartridge | SHIMANO BB-RS500 BB unit |
| Front derailleur | SHIMANO Altus (31.8) | SHIMANO SLX (34.9) | SHIMANO M190 (34.9) | SHIMANO 105 (31.8) |
| Rear derailleur | SHIMANO Acera | SHIMANO XT | SHIMANO Acera | SHIMANO 105 |
| Shifters | SHIMANO Acera (27) | SHIMANO SLX (27) | SHIMANO Altus (24) | SHIMANO 105 (22) |
| Free wheel | SHIMANO HG400-9 11-34 (9) | SHIMANO HG-50-9 11-32 | SHIMANO HG31-8 11-32 (8) | SHIMANO 5800 11-28 (11) |
| Chain | KMC Z9 | SHIMANO HG-53 | KMC Z72 | KMC X11 EL |
| Hubs | QUANDO Disc 32 holes | Shimano LX disc 32 holes | QUANDO 32 holes | MAVIC Aksium Elite wheel set 20 holes |
| Brakes | TEKTRO Vela disc hydraulic (6" rotors) | SHIMANO M575 disc hydraulic (7" rotors) | TEKTRO 837 | TEKTRO R313 |
| Brakes levers | TEKTRO Vela | SHIMANO M575 | SHIMANO Altus | SHIMANO 105 |
| Rims | AUTHOR Xenon 29 32 holes | AUTHOR Argon Pro 32 holes | AUTHOR Xenon 32 holes | - |
| Spokes | black stainless steel 2.0 mm | black stainless steel 2.2 mm butted | steel | MAVIC |
| Tires | AUTHOR Speed Master 29"x 1.75" | MAXXIS Ignitor Kevlar 26" x 2.10" | AUTHOR Spanker 26" x 1,95" | VITTORIA Zaffiro Pro kevlar 700 x 28c |
| Pedals | AUTHOR alloy | SHIMANO M520 clipless | AUTHOR Non Slip resin | - |
| Handlebar | AUTHOR 25 mm 680 mm | EASTON EA50MB riser 20 mm 31.8 mm | AUTHOR 25 mm 620 / 640 mm | RITCHEY Streem II Comp Road 420 / 440 mm |
| Grips | AUTHOR ErgoGrip Lock | AUTHOR XC GripLock | AUTHOR high density foam | - |
| Stem | UNO adjustable | EASTON EA50 | AUTHOR alloy | RITCHEY Comp 4-Axis |
| Seat post | AUTHOR alloy (27.2) | AUTHOR carbon (31.6) | AUTHOR alloy (31.6) | RITCHEY Comp Carbon (27.2) |
| Seat clamp | AUTHOR (31.8) | AUTHOR (34.9) | AUTHOR (34.9) | AUTHOR (31.8) |
| Saddle | AUTHOR Sphere Gel | FIZIK Nisene III | AUTHOR Donna | PRIOLOGO Scratch 2 Space |
| Speed | 27 | 27 | 24 | 22 |
| Weight | 15kg / 20" | 14.00 / L | 13.7 kg / 18" | 8,8 kg / 54 cm |
| Shocker | - | oil-air shocker SUNTOUR Epicon lock out 190 / 50 mm (rear travel 130 mm) | - | - |
| Wheel set | - | - | - | MAVIC Aksium Elite wheel set 20 holes |
| Grips/Bar tapes | - | - | - | AUTHOR suede / gel |
