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| Image |  |  | - | - |
|---|---|---|---|---|
| Product | AUTHOR Spectra 2016 | Master 29 2023-24 | - | - |
| Code | UA#42862401 | UA#4294740225 | - | - |
| Model card | link | link | - | - |
| Size | 16", 18" | 17", 19", 21" | - | - |
| Frame | alloy 6061 26" (L) | AUTHOR carbon Toray T700/800 monocoque 29" | - | - |
| Front fork | RST Capa 26 T (80 mm) | RST F1RST 110-15 Air TRL, air, remote lock out 15 × 110 mm thru axle, 1.5" tapered steerer (100 mm) | - | - |
| Head parts | PRESTINE Integrated 1-1/8" | PRESTINE Integrated 1.5" tapered | - | - |
| Chain Wheel | PROWHEEL 42-34-24 teeth 170 mm cranks | SHIMANO SLX, 34 teeth, 170 / 175 mm cranks | - | - |
| BBParts | VP COMP cartridge | SHIMANO BB-MT800 PF | - | - |
| Front derailleur | SHIMANO TX50 (34.9) | - | - | - |
| Rear derailleur | SHIMANO TX55 | SHIMANO XT | - | - |
| Shifters | SHIMANO Altus (21) | SHIMANO SLX (12) | - | - |
| Free wheel | SHIMANO MF-TZ21 14-28 (7) | SHIMANO CS-M7100, 10-51 (12) | - | - |
| Chain | KMC Z51 | SHIMANO M7100 | - | - |
| Hubs | QUANDO 36 holes | AUTHOR / SHIMANO SLX, 15 × 110 mm thru front axle, 12 × 148 mm thru rear axle, 32 holes | - | - |
| Brakes | TEKTRO 837 | SHIMANO Deore, disc hydraulic (7" rotors) | - | - |
| Brakes levers | SHIMANO Altus | SHIMANO Deore | - | - |
| Rims | alloy 36 holes | AUTHOR Krypton TRC 29, 32 holes | - | - |
| Spokes | steel | black stainless steel 2.0 mm | - | - |
| Tires | AUTHOR Speed Master 26" x 2.00" | VITTORIA Barzo aramid 29" × 2.25" | - | - |
| Pedals | resin | - | - | - |
| Handlebar | steel 20 mm 640 mm | RITCHEY MTN Comp 2 × 9, 9°, 700 / 720 mm | - | - |
| Grips | AUTHOR high density foam | AUTHOR Pro Lock | - | - |
| Stem | ZOOM alloy | RITCHEY Comp 4-Axis | - | - |
| Seat post | ZOOM alloy (31.6) | RITCHEY Comp (31.6) | - | - |
| Seat clamp | AUTHOR (34.9) | AUTHOR (34.9) | - | - |
| Saddle | AUTHOR Noble | PROLOGO Nago Evo X10 | - | - |
| Speed | 21 | 12 | - | - |
| Weight | 13.9 kg / 18" | 11,2 kg / 19" | - | - |
