Trek Marlin 8 Gen 3 (2023)

You want a bike that's ready to progress with you on the trail, and is versatile enough for daily riding to school, work, and grocery shopping.

A lightweight aluminum frame with modern trail riding geometry and internal routing that keeps cables protected and keep the bike looking sleek. An air-spring RockShox fork that's lighter and more adjustable than a coil spring, wide-range SRAM shifting, and the serious stopping power of hydraulic disc brakes.

Marlin 8 is a progressive trail bike ready for building skills on the singletrack, and taking on daily life, too. It packs in premium features where you want them so you can build skills for years to come.

You get real-deal modern mountain bike geometry that keeps handling confident when you're on singletrack, but it's versatile enough for use on roads and bike paths, too
You get a premium RockShox fork with an air spring that's lighter and more adjustable than a coil
You get the simplicity and range of 1x12 drivetrain for putting down power on the trail
The included dropper post lets you get your saddle out of the way when you roll into technical sections and steeper descents.
Marlin models in sizes XXS and XS have a curved top tube and lower standover height that makes it easier for smaller riders to mount and dismount

*Please note - spec applies to all sizes unless listed separately

*Frame	Size: XXS , XS Alpha Silver Aluminum, curved top tube, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew
*Frame	Size: S , M , ML , L , XL Alpha Silver Aluminum, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew
*Fork	Size: XXS RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 42mm offset for 27.5'' wheel, 100mm QR, 80mm travel
	Size: XS , S RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 42mm offset for 27.5'' wheel, 100mm QR, 100mm travel
	Size: M , ML , L , XL RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 46mm offset for 29'' wheel, 100mm QR, 100mm travel
Max compatible fork travel	120mm, XXS: 80mm

Hub front	Formula DC-20 LW, alloy, 6-bolt, 5x100mm QR
Hub rear	Formula DC-22LW, 6-bolt, Shimano 8/9/10 freehub, 135x5mm QR
Skewer rear	Bontrager Switch thru axle
Rim	Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23mm width, Presta valve
*Tire	Size: XXS Maxxis Ardent, tubeless, EXO casing, folding bead, 60tpi, 26x2.40''
	Size: XS , S Maxxis Ardent, tubeless, EXO casing, folding bead, 60tpi, 27.5x2.40''
	Size: M , ML , L , XL Maxxis Ardent, tubeless, EXO casing, folding bead, 60tpi, 29x2.40''
Max tire size	Frame: 29x2.40" (XXS: 26x2.40", XS & S: 27.5x2.40"), Fork: See manufacturer

Shifter	SRAM SX Eagle, 12 speed
Rear derailleur	SRAM SX Eagle
*Crank	Size: XXS SRAM SX Eagle, 30T steel ring, 49mm chainline, 155mm length
	Size: XS , S , M SRAM SX Eagle, 30T steel ring, 49mm chainline, 170mm length
	Size: ML , L , XL SRAM SX Eagle, 30T steel ring, 49mm chainline, 175mm length
Bottom bracket	Truvativ Powerspline, 73mm, threaded cartridge, 118mm spindle
Cassette	SRAM PG-1210 Eagle, 11-50, 12 speed
Chain	SRAM SX Eagle, 12 speed
Pedal	VP-536 nylon platform
Max chainring size	1x: 34T, 2x: 36/22

Saddle	Bontrager Arvada, steel rails, 138mm width
*Seatpost	Size: XXS , XS , S TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length
	Size: M TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length
	Size: ML , L , XL TranzX JD-YSP18, 150mm travel, internal routing, 31.6mm, 470mm length
*Handlebar	Size: XXS , XS Bontrager alloy, 31.8mm, 5mm rise, 690mm width
	Size: S Bontrager alloy, 31.8mm, 15mm rise, 720mm width
	Size: M , ML , L , XL Bontrager alloy, 31.8mm, 15mm rise, 750mm width
Grips	Bontrager XR Trail Comp, nylon lock-on
*Stem	Size: XXS , XS , S Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 35mm length
	Size: M , ML , L Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 50mm length
	Size: XL Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length
Headset	Semi-integrated, 1-1/8''
Brake	Shimano MT200 hydraulic disc
*Brake rotor	Size: XXS , XS , S , M , ML , L , XL Shimano RT26, 6-bolt,160mm
*Brake rotor	Size: M , ML , L , XL Shimano RT26, 6-bolt,180mm
Brake Set	Shimano MT200 hydraulic disc
Rotor size	Max brake rotor sizes - Frame: 180mm (XXS: 160mm), Fork: see fork manufacturer

Weight	M - 14.29 kg / 31.51 lbs
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

size-table
Size	Rider Height	Inseam
2XS	135 - 145 cm 4'5" - 4'9"	64 - 68 cm 25" - 27"
XS	145 - 155 cm 4'9" - 5'1"	69 - 73 cm 27" - 29"
S	155 - 165 cm 5'1" - 5'5"	74 - 78 cm 29" - 31"
M	165 - 176 cm 5'5" - 5'9"	79 - 83 cm 31" - 33"
M/L	173 - 180 cm 5'8" - 5'11"	81 - 86 cm 32" - 34"
L	177 - 188 cm 5'10" - 6'2"	84 - 89 cm 33" - 35"
XL	188 - 195 cm 6'2" - 6'5"	89 - 91 cm 35" - 36"
2XL	195 - 203 cm 6'5" - 6'8"	91 - 97 cm 36" - 38"

All measurements provided in cm unless otherwise noted.

Sizing table
Frame size number	Frame size letter	Wheel size	A — Seat tube	B — Seat tube angle	Effective seat tube angle	C — Head tube length	D — Head angle	E — Effective top tube	F — Bottom bracket height	G — Bottom bracket drop	H — Chainstay length	I — Offset	J — Trail	K — Wheelbase	L — Standover	M — Frame reach	N — Frame stack
13.5"	XXS	26"	32.0	74.0°	74.0°	9.0	66.5°	52.1	30.2	3.8	43.3	4.0	10.4	106.0	65.0	36.5	54.4
14.5"	XS	27.5"	34.0	73.8°	74.0°	9.0	66.5°	55.1	31.3	4.5	43.3	4.2	11.0	109.2	65.8	39.0	56.3
15.5"	S	27.5"	37.0	73.8°	74.0°	10.0	66.5°	57.9	31.3	4.5	43.3	4.2	11.0	112.1	69.2	41.5	57.2
17.5"	M	29"	42.0	73.4°	74.0°	10.5	66.5°	61.5	30.8	6.0	43.8	4.6	11.0	116.3	74.7	44.0	60.9
18.5"	ML	29"	43.5	73.4°	74.0°	11.0	66.5°	63.1	30.8	6.0	43.8	4.6	11.0	118.0	75.9	45.5	61.4
19.5"	L	29"	45.0	73.4°	74.0°	11.5	66.5°	64.7	30.8	6.0	43.8	4.6	11.0	119.7	77.1	47.0	61.8
21.5"	XL	29"	50.0	73.4°	74.0°	13.5	66.5°	67.8	30.8	6.0	43.8	4.6	11.0	123.0	79.1	49.5	63.7