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| Image |  |  |  |  |
|---|---|---|---|---|
| Product | AUTHOR Airline 2020 | AUTHOR Bello 2014 | AUTHOR Spirit 2013 | AUTHOR Aura XR3 2019 |
| Code | UA#42927502 | UA#42820401 | UA#42813201 | UA#42912202 |
| Model card | link | link | link | link |
| Size | 18", 20", 22" | 9" | 15", 17", 19", 21", 23" | 480, 500, 520, 540, 560, 580 mm |
| Frame | triple butted alloy 6061 29" | alloy 6061 16" | alloy 6061 26" | triple butted alloy 6061 |
| Front fork | RST Vita TnL oil, lock out (80 mm) | hi-ten | RST Aerial 30 Air air, lock out (100 mm) | AUTHOR alloy 1.5" tapered |
| Head parts | AUTHOR Integrated 1-1/8" | VP COMP. 1" | FSA Integrated 1-1/8" | PRESTINE Integrated 1.5" tapered |
| Chain Wheel | SHIMANO Deore 48-36-26 teeth 170 / 175 mm cranks | PROWHEEL 32 teeth 102 mm cranks | SUNTOUR XCM-T414 44-32-22 teeth 170 / 175 mm cranks | PROWHEEL Ounce Compact 50-34 teeth 170 / 172.5 / 175 mm cranks |
| BBParts | SHIMANO BB-52 BB unit | VP COMP. | SUNTOUR XCM cartridge | SHIMANO BB-UN26 cartridge |
| Front derailleur | SHIMANO Deore (31.8) | - | SHIMANO Acera (34.9) | SHIMANO Sora |
| Rear derailleur | SHIMANO Deore | - | SHIMANO Alivio | SHIMANO Sora |
| Shifters | SHIMANO Deore (30) | - | SHIMANO Alivio (27) | SHIMANO Sora (18) |
| Free wheel | SHIMANO HG50-10 11-36 (10) | coasterhub 16T | SHIMANO HG-30-9 11-32 (9) | SHIMANO HG400-9 11-32 (9) |
| Chain | KMC X10 | KMC Z33 | SHIMANO HG-53 | SHIMANO HG53 |
| Hubs | AUTHOR Radon 32 holes | rear coasterhub 28 holes | QUANDO Disc 32 holes | QUANDO Road Disc 12 x 100 mm thru front axle 32 holes |
| Brakes | TEKTRO Gemini disc hydraulic (6" rotors) | TEKTRO 855AL coasterhub | TEKTRO HDC 300 WH disc hydraulic (6" rotors) | REVER MCX2 disc mechanical (160 mm rotors) |
| Brakes levers | TEKTRO Gemini | TEKTRO plastic / alloy | TEKTRO HDC 300 WH | SHIMANO Sora |
| Rims | AUTHOR Xenon 29 32 holes | alloy 28 holes | AUTHOR Sphere black 32 holes | JALCO CR25D 32 holes |
| Spokes | stainless steel hi-ten 2.0 mm black | steel | black steel | black stainless steel 2.0 mm |
| Tires | AUTHOR Speed Master Kevlar 29" x 1.75" | 16" x 1.50" | AUTHOR Trail Master 26" x 2.00" | RITCHEY Cross Shield 700 x 35c |
| Pedals | AUTHOR alloy | resin | AUTHOR alloy | - |
| Handlebar | AUTHOR 15 mm 660 / 680 mm | KALIN steel 100 mm 500 mm | KALLOY 15 mm 620 / 640 mm | PROMAX 420 / 440 / 460 mm |
| Grips | AUTHOR Microtech ErgoGrip | AUTHOR kratton rubber | AUTHOR high density foam | - |
| Stem | AUTHOR alloy | KALIN steel | KALLOY alloy | AUTHOR |
| Seat post | AUTHOR alloy (27.2) | alloy (27.2) | KALLOY alloy (31.6) | AUTHOR (27.2) |
| Seat clamp | AUTHOR (31.8) | alloy (31.8) | AUTHOR (34.9) | AUTHOR (31.8) |
| Saddle | AUTHOR Sphere Gel | AUTHOR Bello | AUTHOR Mega Top | AUTHOR Aura |
| Speed | 30 | 1 | 27 | 18 |
| Weight | 12,9 kg /20" | 8,1 kg / 9" | 13,6 Kg / 19" | 10,9kg / 54" |
| Grips/Bar tapes | - | - | - | AUTHOR suede / gel |
