Specialized Sirrus X 3.0 vs Trek Session 8 29 GX

Load Carrying Capacity	--	Combined weight of bicycle, rider, and cargo of 300 pounds (136 kg)
Frame	Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, Plug + Play rack/fender mounts	Alpha Platinum Aluminum, high main pivot, idler pulley, integrated frame protection, internal or external routing, magnesium rocker link, Mino Link, ISCG 05 2-bolt mount, Active Braking Pivot, 157 x 12 mm thru axle, 200 mm travel
Stem	3D-forged alloy, 31.8mm, 7-degree rise	Bontrager Line Pro, 35 mm, Direct Mount, 50 mm length
Handle Bar	Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm	Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width
Fork	A1 Premium Aluminum, flat-mount disc, Plug + Play fender mounts, low rider rack mounts	RockShox Boxxer Select, DebonAir spring, Charger RC damper, 46 mm offset, 20 x 110 mm Boost thru axle, 200 mm travel
Seatpost	Alloy, 12mm offset, 2-bolt clamp, 27.2mm	Bontrager Rhythm Elite, 31.6 mm, 0 mm offset, 330 mm length
Grip	Specialized Neutralizer, Body Geometry, locking grip	Bontrager XR Trail Elite, nylon lock-on
Crankset	Forged aluminum arms, 24mm spindle, Narrow-wide steel chainring 40t, chainguard	Truvativ Descendant DH, DUB 83, 34T steel ring, 165 mm length
Pedals	Specialized Body Geometry Fitness, platform, plastic	Wellgo BO-87B, alloy body, Cro-Mo axle, replaceable pins
Chain	KMC X9, 9-speed w/ Missing Link™	SRAM PC-1110, 11 speed
Shifters	MicroSHIFT SL-M9295, 9-speed	SRAM GX DH, 7 speed
Saddle	Bridge Sport, Steel rails, 155/143mm	Bontrager Arvada, hollow chromoly rails, 138 mm width
Derailleur Rear	microSHIFT Advent, 1x9 w/ clutch	SRAM GX DH, medium cage
Hub Front	Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h	--
Hub Rear	Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h	--
Spoke	Stainless, 14g	--
Cassette	microSHIFT Advent, 9-speed, 11-42t	SRAM PG-720, 11-25, 7 speed
Chainrings	40T	--
Bottom Bracket	Threaded BSA 68mm	SRAM DUB, 83 mm, BSA threaded

Front	Pathfinder Sport, 700x42	Bontrager G5 Team Issue, wire bead, 2-ply 60tpi, 29 x 2.50''
Rear	Pathfinder Sport, 700x42	Bontrager G5 Team Issue, wire bead, 2-ply 60tpi, 29 x 2.50''
Wheel / RIM	700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h	Front : Bontrager Line DH 30, Tubeless Ready, 6-bolt, 110 x 20 mm Boost thru axle Rear : Bontrager Line DH 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano 7 speed freehub, 157 x 12 mm thru axle
Tube	Standard 40mm PV 700x32-50	--

Front	Tektro HD-R280, hydraulic disc, 160 mm rotor	SRAM Code R 4-piston hydraulic disc Brake Rotor : SRAM CenterLine, 6-bolt, round edge, 180 mm
Rear	Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 160mm	SRAM Code R 4-piston hydraulic disc Brake Rotor : SRAM CenterLine, 6-bolt, round edge, 200 mm

Front	--	--
Rear	--	--

Colors

Gloss Birch / Satin Taupe Reflective Satin Maroon / Black / Satin Black Reflective Gloss Metallic Obsidian / Satin Black Reflective

Satin Trek Black

Length	--	--
Weight	11.4 kg	17.68 kg

Features	--	- Rock the mullet - Active Braking Pivot - Suspension Calculator
Additional Details	--	Shock : Size : R1 - Fox VAN Performance, 400lb spring, 250 x 72.5 mm Size : R2 - Fox VAN Performance, 450lb spring, 250 x 72.5 mm Size : R3 - Fox VAN Performance, 500lb spring, 250 x 72.5 mm