Trek 2020 Checkpoint SL 7 vs Trek Session 8 27.5

Load Carrying Capacity	Combined weight of bicycle, rider, and cargo of 275 pounds (125 kg)	Combined weight of bicycle, rider, and cargo of 300 pounds (136 kg)
Frame	500 Series OCLV Carbon, IsoSpeed, tapered head tube, Control Freak internal routing, 3S chain keeper, rack and fender mounts, flat mount disc, horizontal sliding dropouts, 142 x 12 mm thru axle	Alpha Platinum Aluminum, tapered head tube, internal control routing, integrated frame protection, downtube guard, ISCG 05 mount, magnesium rocker link, Mino Link, ABP, 157 x 12 mm thru axle, 210 mm travel
Stem	Size : 49 - Bontrager Pro, 31.8mm, Blendr compatible, 7 degree, 80 mm length Size : 52, 54 - Bontrager Pro, 31.8mm, Blendr compatible, 7 degree, 90 mm length Size : 56, 58 - Bontrager Pro, 31.8mm, Blendr compatible, 7 degree, 100 mm length Size : 61 - Bontrager Pro, 31.8mm, Blendr compatible, 7 degree, 110 mm length	Bontrager Line Pro, 35 mm, Direct Mount, 50 mm length
Handle Bar	Size : 49 - Bontrager Pro IsoCore VR-CF, OCLV Carbon, 31.8 mm, internal Di2 routing, 93 mm reach, 123 mm drop, 38cm width Size : 52 - Bontrager Pro IsoCore VR-CF, OCLV Carbon, 31.8 mm, internal Di2 routing, 93 mm reach, 123 mm drop, 40cm width Size : 54, 56 - Bontrager Pro IsoCore VR-CF, OCLV Carbon, 31.8 mm, internal Di2 routing, 93 mm reach, 123 mm drop, 42cm width Size : 58, 61 - Bontrager Pro IsoCore VR-CF, OCLV Carbon, 31.8 mm, internal Di2 routing, 93 mm reach, 123 mm drop, 44cm width	Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width
Fork	Checkpoint carbon, tapered carbon steerer, rack mounts, fender mounts, flat mount disc, 12 x 100 mm thru axle	RockShox Boxxer Select, DebonAir spring, Charger RC damper, 46 mm offset, 20 x 110 mm Boost thru axle, 200 mm travel
Seatpost	Size : 49, 52, 54, 56 - Bontrager carbon seatmast cap, 20 mm offset, short length Size : 58, 61 - Bontrager carbon seatmast cap, 20 mm offset, tall length	Bontrager Rhythm Elite, 31.6 mm, 0 mm offset, 330 mm length
Grip	Bontrager Supertack Perf tape	Bontrager XR Trail Elite, alloy lock-on
Crankset	Size : 49 - SRAM Force, 40T, 24 mm spindle, 165 mm length Size : 52 - SRAM Force, 40T, 24 mm spindle, 170 mm length Size : 54, 56 - SRAM Force, 40T, 24 mm spindle, 172.5 mm length Size : 58, 61 - SRAM Force, 40T, 24 mm spindle, 175 mm length	Truvativ Descendant DH, DUB 83, 34T steel ring, 165 mm length
Pedals	--	Wellgo BO-87B, alloy body, Cro-Mo axle, replaceable pins
Chain	SRAM XX1 Eagle, 12 speed	SRAM PC-1110, 11 speed
Shifters	SRAM Force eTap AXS, 12 speed	SRAM GX DH, 7 speed
Saddle	Bontrager Arvada Elite, stainless steel rails, 138 mm width	Bontrager Arvada, hollow chromoly rails, 138 mm width
Headset	FSA Integrated, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom	FSA Orbit, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom
Derailleur Rear	SRAM XX1 Eagle AXS	SRAM GX DH, medium cage
Cassette	SRAM XG-1295 Eagle, 10-50, 12 speed	SRAM PG-720, 11-25, 7 speed
Chainrings	40 T	36T
Bottom Bracket	--	SRAM DUB, 83 mm, BSA threaded

Front	Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700 x 40c	Bontrager G4 Team Issue, Inner Strength sidewalls, wire bead, 60 tpi, 27.5 x 2.40''
Rear	Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700 x 40c	Bontrager G4 Team Issue, Inner Strength sidewalls, wire bead, 60 tpi, 27.5 x 2.40''
Wheel / RIM	Front : Bontrager Aeolus Pro 3V, OCLV Carbon, Tubeless Ready, 25 mm rim width, 100 x 12 mm thru axle Rear : Bontrager Aeolus Pro 3V, OCLV Carbon, Tubeless Ready, 25 mm rim width, SRAM XD-R driver, 142 x 12 mm thru axle	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 7spd freehub 157 x 12 mm thru axle

Front	SRAM Force eTap AXS hydraulic disc, flat mount Brake Rotor : SRAM CenterLine X, centerlock, round edge, 160 mm	200 mm, SRAM Guide R 4-piston hydraulic disc
Rear	SRAM Force eTap AXS hydraulic disc, flat mount Brake Rotor : SRAM CenterLine X, centerlock, round edge, 160 mm	180 mm, SRAM Guide R 4-piston hydraulic disc

Front	--	--
Rear	--	--

Colors

Rage Red

Rage Red

Length	--	--
Weight	8.65 kg	16.27 kg

Features	- IsoSpeed Decoupler - 500 Series OCLV - Ride Tuned Seatmast - Horizontal Sliding Dropout - Carbon Armor - Gravel Specific Tires	- Active Braking Pivot - Down Tube Guard - Suspension Calculator - Mino Link Adjustable Geometry
Additional Details	--	Max compatible fork travel : 200 mm