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| Image |  |  |  | - |
|---|---|---|---|---|
| Product | AUTHOR Enigma 2021-22 | AUTHOR Era 1.0 2014 | AUTHOR Aura XR4 2021-22 | - |
| Code | UA#42940502 | UA#42825602 | UA#42941302 | - |
| Model card | link | link | link | - |
| Size | 17", 19" | 17", 19", 21" | 500, 520, 540, 560, 580 mm | - |
| Frame | double butted hydroformed alloy 6061 29" (9) (integrated battery) | double butted alloy 6061, suspension oil-air shocker SUNTOUR Epicon AM LORP lock out 190 / 50 mm (rear travel 130 mm) | triple butted alloy 6061 | - |
| Front fork | RST ViV Air TnL air, lock out 1.5" tapered column (80 mm) | RST Titan 15 Air SRL air, remote lock out 15 mm thru axle 1.5" tapered steerer (130 mm) | AUTHOR carbon legs, alloy steerer 1.5" tapered | - |
| Engine | SHIMANO Steps E-6100, 250 W | - | - | - |
| Battery | SHIMANO E-8035 Li-Ion, 36 V, 14 Ah, 504 Wh | - | - | - |
| Display | SHIMANO Steps E-7000, LCD | - | - | - |
| Head parts | AUTHOR Integrated 1,5" | FSA Orbit 1.5B 1.5" tapered | PRESTINE Integrated 1.5" tapered | - |
| Chain Wheel | SHIMANO Steps E-6100 38 teeth 170 / 175 mm cranks | SRAM S1000 44-33-22 teeth 170 / 175 mm cranks | SHIMANO GRX 600 46-30 teeth 172.5 / 175 mm cranks | - |
| BBParts | SHIMANO Steps | SRAM GXP | SHIMANO BB-RS500 BB unit | - |
| Rear derailleur | SHIMANO Deore | SRAM X7 | SHIMANO Tiagra (20) | - |
| Shifters | SHIMANO Deore (10) | SRAM X7 Trigger (30) | SHIMANO GRX 400 (20) | - |
| Free wheel | SHIMANO CS-M4100-10 11-46 (10) | SRAM PG-1050 12-36 (10) | SHIMANO HG500-10 11-34 (10) | - |
| Chain | KMC e10T | SRAM PC-1031 | KMC X10 | - |
| Hubs | AUTHOR Xenon 32 holes | AUTHOR Helium / Xenon Disc 15 mm thru axle 32 holes | QUANDO Road Disc 12 × 100 mm thru front axle 32 holes | - |
| Brakes | TEKTRO Gemini disc hydraulic (7" rotors) | AVID Elixir 3 disc hydraulic (7" rotors) | SHIMANO RS305 kotoučové mechanické (160 mm kotouče) | - |
| Brakes levers | TEKTRO Gemini WS | AVID Elixir 3 | SHIMANO Tiagra | - |
| Rims | AUTHOR Xenon 29 32 holes | AUTHOR Neon Pro 32 holes | JALCO SRD 21 32 holes | - |
| Spokes | black stainless steel 2.2 mm | black stainless steel 2.2 mm butted | black stainless steel 2.0 mm | - |
| Tires | VITTORIA Barzo 29" × 2.10" | GEAX AKA Kevlar 26" x 2.20" | PANARACER Gravel King SK Sport 700 × 38c | - |
| Pedals | AUTHOR Non Slip alloy | SHIMANO M520 clipless | - | - |
| Handlebar | AUTHOR 15 mm 660 / 680 mm | EASTON EA30 20 mm 635 mm | PROMAX 420 / 440 / 460 mm | - |
| Grips | AUTHOR Pro Lock | AUTHOR GripLock | - | - |
| Stem | AUTHOR alloy | EASTON EA50 | AUTHOR | - |
| Seat post | AUTHOR alloy (27.2) | EASTON EA30 (31.6) | AUTHOR (27.2) | - |
| Seat clamp | AUTHOR (31.8) | AUTHOR (34.9) | AUTHOR (31.8) | - |
| Saddle | AUTHOR Area Gel | FIZIK Nisene III | AUTHOR Guru | - |
| Speed | 10 | 30 | 20 | - |
| Weight | 21,7 kg / 17" | 14,2 Kg / 19" | 10,8 kg / 54 cm | - |
| Front derailleur | - | SRAM X7 (34.9) | SHIMANO GRX 400 | - |
| Grips/Bar tapes | - | - | AUTHOR suede / gel | - |
