For simplicity's sake -- here are the breakdowns:
2012 Horsethief:
6061-T6 Heat Treated Aluminum Tubeset; a mix of hydroformed and shaped tubing, custom spec'd with all-mountain riding in mind; 142 x 12mm Maxle dropout
SRAM X.9 2 x 10 drivetrain with Formula/Stan's wheels and Conti Mountain King II 29 x 2.35" tires
Fox 34 RL fork, QR15, tapered steerer, 120mm (convertible to 140mm)
Fox Float RP2 Boost Valve Air rear shock; adjustable rebound; 120mm travel; two ProPedal settings: Off for unrestricted bump absorption, On for optimized climbing
Simplified one-piece rear triangle with shaped stays and a shared pivot link design that reduces pivot points and hardware
ISCG-05 chain guide tabs
Get full specs on the Horsethief at salsacycles.com
Crankset: SRAM S1000 GXP, SM = 170mm, MD, LG, XL = 175mm
Chainring: SRAM 22/36T
Bottom Bracket: SRAM GXP
Chain: KMC X10
Cassette: SRAM PG-1030, 12-36T
Front Derailleur: SRAM X7, 2 x 10, High Direct Mount
Rear Derailleur: SRAM X9, 10-Speed, Mid Cage, White
Fork: Fox 34 RL 120mm (convertible to 140mm), QR15, Tapered Steerer, White, Custom for Salsa
Headset: Cane Creek 40-Series, Tapered ZS, Black
Handlebar: Salsa Pro Moto 2, 11-Degree Flat, 31.8mm, Black, 710mm Width
Stem: Salsa Pro Moto 2, 31.8mm, Black
Grips: Salsa Juegos de Fuegos
Front Brake: SRAM Elixir 5, 180mm, 6-Bolt, HS1 Rotor
Rear Brake: SRAM Elixir 5, 160mm, 6-Bolt, HS1 Rotor
Brake Levers: SRAM Elixir 5
Tires: Continental Mountain King II 29 x 2.35", Folding Bead
Front Shifter: SRAM X7 Trigger, 2 x 10
Rear Shifter: SRAM X7 Trigger, 10-Speed
Seatpost: Salsa Pro Moto 2, 31.6mm
Seatclamp: Salsa Flip-Lock, Special Color
Saddle: WTB Pure V, Black
Front Hub: Formula, 15mm Thru-Axle, Sealed Cartridge, 32H, Special Color
Rear Hub: Formula, Double Sealed Cartridge, 32H, Special Color
Quick Release: Front: Fox QR15; Rear: SRAM 12 x 142mm Maxle
Spokes: DT Swiss, Competition, Butted 2.0/1.8, Black
Nipples: DT Swiss, ProLock Brass
Rims: Stan's Flow 29er, 32H
2013 Horsethief 3:6061-T6 heat-treated aluminum; custom spec'd mix of hydrofromed and shaped tubing paired wtih a RockShox Sektor, Tapered, 130mm travel
15mm front, 12x142mm rear axles
Front Der: Shimano SLX HDM
Rear Der: Shimano SLX
Cassette: Shimano Deore 10-Speed, 11-36T
Chain: KMC X10
Crankset: Shimano Deore 24/32/42T
Fork: RockShox Sektor, Tapered, 130mm travel
Rear Shock: RockShox Monarch R, 7.5x2"
Headset: Cane Creek 10 ZS44/56
Stem: Salsa Pro Moto 3
Handlebar: Salsa Pro Moto 3, 11-Degree
Grips: Salsa Backcountry
Shifter: Shimano SLX 3x10
Front Brake: Avid Elixir 1
Rear Brake: Avid Elixir 1
Rotors: 180mm Front/160mm Rear
Seatpost: Salsa Pro Moto 3
Saddle: WTB Pure V
Tires: Continental Mountain King II 29 x 2.4"
Front Hub: Salsa 3 by Formula, 32H, 15mm Thru Axle
Rear Hub: Salsa 3 by Formula, 32H, 12x142mm Thru Axle
Spokes: DT Swiss
Rims: Sun Inferno 28mm