Mongoose Title Junior vs Trek Marlin 5 Gen 2

Frame	Tectonic T1, aluminum, BMX Race geometry, internal cable routing	Alpha Silver Aluminium, curved top tube, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5 mm QR
Stem	Mongoose, threadless front load, 30 mm	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	Mongoose, aluminum, 24 in width, 4 in rise	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	Hi-Ten steel	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	Aluminum, 200 mm, 22.2 mm	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	Mongoose Hive, 120 mm	--
Crankset	Samox 3-piece, aluminum 150 mm, 40T chainring	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	Mongoose, nylon	--
Chain	KMC S1	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	Mongoose Unifier Mini, 1 piece rails	Bontrager Arvada, steel rails, 138 mm width
Headset	Threadless, 1” external, retainer bearing	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	Aluminum, ball bearing, 3/8 in axle, 28H	Formula DC-20, alloy, 6-bolt, 5x100 mm QR
Hub Rear	Aluminum, ball bearing, 3/8 in axle, 28H	Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR
Spoke	14G, steel, chrome	--
Cassette	--	Shimano 8-speed, 12-32T
Bottom Bracket	Euro cartridge bearing, square taper, threaded 68 mm shell	Sealed cartridge, 73mm

Front	Arisun XLR8, 20 in x 1-1/8 in, wire bead	Bontrager XR2 Comp, wire bead, 30 tpi, 26x2.20"
Rear	Arisun XLR8, 20 in x 1-1/8 in, wire bead	Bontrager XR2 Comp, wire bead, 30 tpi, 26x2.20"
Wheel / RIM	Xposure Infinity, aluminum double wall, 14 mm ID, 28H	Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve

Front	Linear pull, aluminum	Tektro HD-M275 hydraulic disc, 180 mm rotor
Rear	--	Tektro HD-M275 hydraulic disc, 180 mm rotor

Front	--	--
Rear	--	--

Colors

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Length	--	--
Weight	--	13.97 kg

Features	- Lightweight Tectonic T1 aluminum frame, integrated headset, and internal cable routing - 40/16T drivetrain; 3-piece aluminum 150 mm crank - 20” wheels with Arisun 1-1/8” race tires - Mongoose aluminum 4” handlebar; front loader 30 mm stem	--
Additional Details	Rear Cog: Single-speed, 16T freewheel Size: one size QR seat clamp	--