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| Image |  |  |  |  |
|---|---|---|---|---|
| Product | AUTHOR Horizon ASL 2019 | AUTHOR Champion 26 2019 | AUTHOR Spirit 29 2017 | Aura XR2 2025 |
| Code | UA#42908902 | UA#42904001 | UA#42875102 | UA#42961902 |
| Model card | link | link | link | link |
| Size | 15", 17", 19" | 13.5" | 17", 19", 21" | 500, 520, 540, 560, 580 mm |
| Frame | alloy 6061 29" (ASL) | triple butted hydroformed alloy 6061 26" | hydroformed alloy 6061 29" | triple butted alloy 6061, max tyre size 700 × 42C |
| Front fork | RST Capa 29 T (80 mm) | alloy 6061 26" | RST Blaze 29 TnL oil, lock out (100 mm) | AUTHOR alloy, 1.5" tapered |
| Head parts | PRESTINE Integrated 1-1/8" | AUTHOR Integrated 1.5" tapered | AUTHOR Integrated 1.5" tapered | PRESTINE Integrated, 1.5" tapered |
| Chain Wheel | PROWHEEL 42-34-24 teeth 170 / 175 mm cranks | SUNTOUR Zeron 32 teeth 160 mm cranks | SHIMANO M-4000 40-30-22 teeth 170 / 175 mm cranks | PROWHEEL RPL, 48-32 teeth, 172,5 / 175 mm cranks |
| BBParts | VP COMP cartridge | SUNTOUR BB unit | SHIMANO ES300 Octalink | SHIMANO BB-UN300, cartridge |
| Front derailleur | SHIMANO TY700 (31.8) | - | SHIMANO Acera (34.9) | SHIMANO Sora |
| Rear derailleur | SHIMANO TX800 | SHIMANO Deore | SHIMANO Alivio | SHIMANO Sora |
| Shifters | SHIMANO TX800(24) | SHIMANO Deore (10) | SHIMANO Alivio (27) | SHIMANO Sora (18) |
| Free wheel | SHIMANO HG200-8 12-32 (8) | SHIMANO HG500-10 11-42 (10) | SHIMANO HG400-9 11-34 (9) | SHIMANOCS- HG400-9, 11-32 (9) |
| Chain | KMC Z8.1 | KMC X10 | KMC Z99 | SHIMANO HG53 |
| Hubs | QUANDO 32 holes | QUANDO 32 holes | QUANDO Disc 32 holes | QUANDO Road Disc, 12 × 100 mm thru front axle, 32 holes |
| Brakes | TEKTRO V | TEKTRO V | TEKTRO Auriga disc hydraulic (7" rotors) | SHIMANO BR-UR300, disc hydraulic (160 mm rotors) |
| Brakes levers | SHIMANO M310 | TEKTRO alloy | TEKTRO Auriga | SHIMANO BL-MT201 |
| Rims | alloy 32 holes | AUTHOR Argon 26 32 holes | AUTHOR Xenon 29 32 holes | JALCO SRD 21, 32 holes |
| Spokes | black steel | black stainless steel 2.0 mm | black steel | black stainless steel 2.0 mm |
| Tires | AUTHOR Speed Master 29"x 1.75" | CST B-Trail kevlar 26" x 2.10" | AUTHOR Rocket 29" x 2.10" | PANARACER Gravel King SK Sport, 700 × 38C (40-622) |
| Pedals | AUTHOR Non Slip resin | resin | AUTHOR alloy | - |
| Handlebar | steel 20 mm 660 / 680 mm | AUTHOR Flat Top bar 0 mm 600 mm | AUTHOR Flatbar 9° 700 mm | AUTHOR rise 15 mm 9° 660 / 680 mm |
| Grips | AUTHOR ErgoGrip | AUTHOR high density foam | AUTHOR high density foam | - |
| Stem | ZOOM alloy | AUTHOR alloy | AUTHOR alloy | AUTHOR alloy |
| Seat post | ZOOM alloy (27.2) | AUTHOR alloy (31.6) | AUTHOR alloy (31.6) | AUTHOR alloy (27.2) |
| Seat clamp | AUTHOR (31.8) | AUTHOR (34.9) | AUTHOR (34.9) | AUTHOR (31.8) |
| Saddle | AUTHOR Area | AUTHOR Champion | AUTHOR Summit | AUTHOR Guru |
| Speed | 24 | 10 | 27 | 18 |
| Weight | 13,9kg / 17" | 10,1kg / 13.5" | 14,9 kg / 19" | 10,9 kg / 54 cm |
| Grips/Bar tapes | - | - | - | AUTHOR Microtech ErgoGrip |
