Framed Witness - BMX 20 vs Trek Marlin 5 Gen 2

Frame	100% Chromoly	Alpha Silver Aluminium, curved top tube, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5 mm QR
Stem	Framed Alloy Front Load	Size: XXS Bontrager Comp, 31.8 mm, 7-degree, 35 mm length Size: XS Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length Size: S Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 60 mm length Size: M Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length Size: ML , L Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 80 mm length Size: XL , XXL Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 90 mm length
Handle Bar	Chromoly 2 Piece; 8 3/4" x 29"	Size: XXS , XS Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width Size: S , M , ML , L , XL , XXL Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width
Fork	Chromoly; 1 1/8"	Size: XXS SR Suntour XCM 30, coil spring, lockout, preload, 100 mm QR, 100 mm travel, 26" wheel Size: XS SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5" wheel, 100 mm QR, 80 mm travel Size: S SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5" wheel, 100 mm QR, 100 mm travel Size: M , ML , L , XL , XXL SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel
Seatpost	Alloy 25. 4mm Pivotal	Size: XXS Bontrager alloy, 31.6 mm, 12 mm offset, 300 mm length Size: XS , S , M Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length Size: ML , L , XL , XXL Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length
Grip	Velo Mushroom 150mm	--
Crankset	Crank : 3 Piece Chromoly Tubular 175mm Crank Spindle : 19mm, 8 Spline Spindle	Size: XXS Prowheel TM-CY10, 36/22, 160 mm length Size: XS , S , M Shimano M315, 36/22, 170 mm length Size: ML , L , XL , XXL Shimano M315, 36/22, 175 mm length
Pedals	Wellgo Pedals	--
Chain	KMC Z410	KMC Z8.3, 8 speed
Shifters	--	Size: XXS , XS , S , M , ML , L , XL , XXL Shimano M315, 2-speed Size: XXS , XS , S , M , ML , L , XL , XXL Shimano M315, 8-speed
Saddle	Velo Denim Pivotal	Bontrager Arvada, steel rails, 138 mm width
Headset	Standard 1 1/8" Loose Ball Unsealed	Semi-integrated, 1-1/8"
Derailleur Front	--	Shimano Altus M315, 34.9 mm clamp, top swing, dual pull
Derailleur Rear	--	Shimano Altus M310
Hub Front	Alloy 36H Sealed 3/8" Axle	Formula DC-20, alloy, 6-bolt, 5x100 mm QR
Hub Rear	Alloy 36H Sealed 14mm Axle	Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR
Cassette	--	Shimano 8-speed, 12-32T
Chainrings	25 Tooth Steel	--
Bottom Bracket	BB Height : 12" American; Unsealed	Sealed cartridge, 73mm

Front	20"x2. 3"	Bontrager XR2 Comp, wire bead, 30 tpi, 26x2.20"
Rear	20"x2. 3"	Bontrager XR2 Comp, wire bead, 30 tpi, 26x2.20"
Wheel / RIM	Rear Free Wheel : 9 Tooth Cog Rims : Alloy Double Wall 36 Hole	Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve

Front	--	Tektro HD-M275 hydraulic disc, 180 mm rotor
Rear	Tektro Brakes	Tektro HD-M275 hydraulic disc, 180 mm rotor
Brake Lever	Framed Alloy Lever	--

Front	--	--
Rear	--	--

Colors

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Length	--	--
Weight	12 kg	13.97 kg
Wheelbase	914 mm	--

Features	--	--
Additional Details	Top Tube : 20. 5" Seat Tube : 9" Chainstay : 13. 75" Standover Height :22 Clamp : Alloy 28. 6mm	--