Trek

2026 | Roscoe 8 Gen 4

$3,299.99

Shipping calculated at checkout.

Color: Lava

Size: Small

Small Medium Large Medium/Large X-Large

SKU:ROS16102314

Shipping & Returns

We care about your bike. We understand the excitement of unboxing a brand new bike and make sure you get the best experience when receiving your new bike.

Canadian shipping charges:

Sale bikes: $200
Standard pedal bikes over $1250: Free
Standard pedal bikes under $1250: $100
Electric bikes: $200
Fat bikes: $200
Kid's bikes: $60

Insurance charge: 1.5% insured value

We are currently offering gift cards to partially offset the price of shipping a bike! Visit our shipping page for more details

Bike Specifications

Specifications are subject to change without notice

Drivetrain

Cassette Shimano Deore M6100, 10-51, 12 speed

Chain Shimano Deore M6100, 12 speed

Rear derailleur Shimano Deore M6100, long cage

Shifter Shimano Deore M6100, 12 speed

Brakes

Brake rotor Shimano RT66, 6-bolt, 180mm // Shimano RT66, 6-bolt, 203mm

Brake type Hydraulic disc

Caliper Shimano M6120 4-piston hydraulic disc // Shimano M6120 4-piston hydraulic disc

Rotor size Max brake rotor sizes - Frame: 203mm, min 180mm, Fork: see fork manufacturer

Cockpit

Grips tape Trek Line Comp, nylon lock-on

Handlebars Bontrager Comp, alloy, 31.8mm, 40mm rise, 780mm width

Saddle Bontrager Verse P3, steel rails

Seatpost TranzX JD-YSI34, 170mm travel, internal routing, 31.6mm, 500mm length

Seat collar Bolt-on, 36.4mm

Stem Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length

Wheels

Front hub Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle

Rear hub Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano freehub, Boost148, 12mm thru axle

Rims Bontrager Line TLR 30, Tubeless Ready, 28-hole, Presta valve

Tires Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.50"

Valves Bontrager TLR sealant, 180 ml/6 oz

Wheel size 29"

Suspension

Fork Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt X axle, 150mm travel

Fork brand Fox

Fork travel 160mm

Frame

Bottom bracket Shimano BB-MT501 BSA

Frame Alpha Platinum Aluminum, tapered head tube, ZS headset, internal derailleur & dropper post routing, ISCG 05, threaded BB, UDH, 148x12mm thru axle

Frame material Aluminum

Headset FSA Orbit, sealed cartridge bearing, 1-1/8' top, 1.5' bottom, 1.5 crown

Seatpost TranzX JD-YSI34, 170mm travel, internal routing, 31.6mm, 500mm length

Weight as spec d M - 14.18 kg / 31.27 lbs (with TLR sealant, no tubes)

Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

Description

Built for a good time from the ground up — Roscoe is a rowdy hardtail here to party. Progressive trail geometry keeps it lively and confident while 29˝ hoops with plenty of tire clearance give you grip to rip through the rough stuff. Up front, a mid-travel suspension fork soaks up roots and rocks, and keeps handling smooth when the trails get wild. Roscoe 8 is a rowdy hardtail built to hunt for side hits and dive into the steep stuff . Its Alpha Gold Aluminum frame pairs with a Fox Rhythm 36 fork (150mm travel) to soak up rough and chunky trail debris. It delivers plenty of gears for punchy climbs, thanks to a 12-speed Shimano Deore drivetrain, and stop-on-a-dime braking power from 4-piston Shimano M6100 hydraulic disc brakes.

Geometry Chart

Measurement	Small	Medium	Large	Medium / Large	X-Large
Reach (mm)	415	440	470	455	500
Stack (mm)	604	644	662	648	684
Head Tube Angle (°)	65.0°	65.0°	65.0°	65.0°	65.0°
Seat Tube Angle (°)	73.1°	73.1°	74.1°	74.1°	75.1°
Wheelbase (mm)	1139	1186	1224	1203	1265
Chainstay Length (mm)	425	430	430	430	430
Head Tube Length (mm)	90	100	120	105	145
Seat Tube Length (mm)	330	375	425	400	450
BB Drop (mm)	45	61	61	61	61
BB Height (mm)	311	312	312	312	312
Rake (mm)	37	44	44	44	44
Trail (mm)	13	13	13	13	13
Axle to Crown (mm)	604	644	662	648	684

Part Numbers

Size	Lava	Dark Star
Small	SKUROS16102314 VPNTrek_5341553 UPC197216281009 MPN5341553	SKUROS206495544 VPNTrek_5341548 UPC197216280958 MPN5341548
Medium	SKUROS165976554 VPNTrek_5341554 UPC197216281016 MPN5341554	SKUROS204096974 VPNTrek_5341549 UPC197216280965 MPN5341549
Large	SKUROS168042484 VPNTrek_5341556 UPC197216281030 MPN5341556	SKUROS205725204 VPNTrek_5341551 UPC197216280989 MPN5341551
Medium/Large	SKUROS175706694 VPNTrek_5341555 UPC197216281023 MPN5341555	SKUROS211169224 VPNTrek_5341550 UPC197216280972 MPN5341550
X-Large	SKUROS178878524 VPNTrek_5341557 UPC197216281047 MPN5341557	SKUROS214059724 VPNTrek_5341552 UPC197216280996 MPN5341552

Size Chart

Trek | Mountain

Size	Rider height (in)	Rider height (cm)	Inseam (in)	Inseam (cm)
X-Small	4'9" - 5'1"	145 - 155 cm	27" - 29"	69 - 73 cm
Small	5'1" - 5'5"	155 - 165 cm	29" - 31"	74 - 78 cm
Medium	5'5" - 5'10"	165 - 177 cm	31" - 33"	79 - 83 cm
Medium/Large	5'8" - 5'11"	173 - 180 cm	32" - 34"	81 - 86 cm
Large	5'10" - 6'2"	177 - 188 cm	33" - 35"	84 - 89 cm
X-Large	6'2" - 6'5"	188 - 195 cm	35" - 36"	89 - 91 cm
XX-Large	6'5" - 6'8"	195 - 203 cm	36" - 38"	91 - 97 cm

Ready to get rowdy

With 150mm front travel, trail-smashing 29-inch wheels, and dialed-for-dirt frame features, Roscoe is ready to get rowdy on your favorite rides.

Rock Solid

The bolt on downtube guard will stay put even after ripping though a chucky trail, keeping your bike quiet and protected.

Integrated storage

The frame bag is made from a recycled ripstop polyester with an eco friendly DWR coating on the outside that is water resistant, with plenty of room to stash everything from snacks to safety supplies.

Progressive trail geometry

A long reach, slack head angle, steep seat angle, and short chain stays combine for a ride that's confidence inspiring, yet still nimble and fun.

2026 | Roscoe 8 Gen 4