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| Image |  |  |  | - |
|---|---|---|---|---|
| Product | AUTHOR Smart 20 2017 | Smart 20 2025 | AUTHOR Sector 29 2014 | - |
| Code | UA#42872301 | UA#42953701 | UA#42824902 | - |
| Model card | link | link | link | - |
| Size | 10" | 10" | 17", 19", 21" | - |
| Frame | alloy 6061 20" | alloy 6061 20" | AUTHOR B-carbon monocoque 29" | - |
| Front fork | RST Capa T 20 (30 mm) | RST Capa T 20 (50 mm) | FOX 32 Float 29 CTD O/C 100 air, remote lock out 15 mm thru axle 1.5" tapered steerer (100 mm) | - |
| Head parts | PRESTINE 1-1/8" | PRESTINE 1-1/8" | AUTHOR Integrated 1.5" tapered | - |
| Chain Wheel | PROWHEEL 36 teeth 127 mm cranks | PROWHEEL, 36 teeth, 127 mm cranks | SHIMANO XT 40-30-22 teeth 170 / 175 mm cranks | - |
| BBParts | VP COMP | VP COMP | SHIMANO XT BB unit | - |
| Rear derailleur | SHIMANO TY21 | SHIMANO TY200 | SHIMANO XT | - |
| Shifters | SHIMANO Revoshift (6) | SHIMANO Revoshift (6) | SHIMANO XT (30) | - |
| Free wheel | SHIMANO MF-TZ20 14-28 (6) | SHIMANO MF-TZ510-6, 14-28 (6) | SHIMANO M771-10 11-36 (10) | - |
| Chain | KMC Z33 | KMC Z6 | SHIMANO HG-75 | - |
| Hubs | QUANDO 32 holes | QUANDO, 20 holes | SHIMANO XT Disc 15 mm thru axle 32 holes | - |
| Brakes | TEKTRO V | TEKTRO V | SHIMANO XT disc hydraulic (7" rotors) | - |
| Brakes levers | TEKTRO plastic / alloy | TEKTRO alloy | SHIMANO XT | - |
| Rims | alloy 32 holes | alloy, 20 holes | AUTHOR Helium Pro 29 white 32 holes | - |
| Spokes | steel black | black steel | black stainless steel 2.0 mm | - |
| Tires | 20" x 1.75" | AUTHOR Speed Master, 20" × 1.75" | GEAX Mezcal Kevlar 29" x 2.10" | - |
| Pedals | resin | plastic | SHIMANO M540 clipless | - |
| Handlebar | steel 20 mm 540 mm | steel, 20 mm, 540 mm | EASTON EA70 XC 0 mm 720 mm | - |
| Grips | AUTHOR kratton rubber | - | AUTHOR Pro Lock | - |
| Stem | alloy | alloy | EASTON EA90 | - |
| Seat post | steel (27.2) | alloy (27.2) | EASTON EA70 Zero (31.6) | - |
| Seat clamp | AUTHOR (31.8) | AUTHOR (31.8) | AUTHOR (34.9) | - |
| Saddle | AUTHOR Smart | AUTHOR Pilot | FIZIK Gobi XM | - |
| Speed | 6 | 6 | 30 | - |
| Weight | 10,7 kg / 10" | 9,8 kg / 10" | 11,2 / 19" | - |
| Front derailleur | - | - | SHIMANO XT (34.9) | - |
