Trek Roscoe 8 Gen 4 — 2027 Hardtail Mountain Bike

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  • Overview
  • Alpha Platinum Aluminum frame with a 150mm Fox 36 fork and 12-speed Shimano Deore. Currently out of stock — check with either Fresh Air Kelowna location.

Product details

IN STORE PICKUP OR LOCAL DELIVERY ONLY

Whether you're exploring singletrack at Hydraulink Trails or climbing the fire roads around Knox Mountain, the Roscoe 8 Gen 4 is a trail-hungry hardtail made for riders who chase side hits, shred descents, and love every rowdy moment in between. Its Alpha Platinum Aluminum frame is paired with a 150mm Fox Rhythm 36 fork, giving you the confidence to smash through rock gardens and stay planted on steep, technical terrain. The 12-speed Shimano Deore drivetrain delivers a wide gear range for spinning up tough climbs, while 4-piston Shimano hydraulic disc brakes provide confident, consistent stopping power.

 

 

IT'S RIGHT FOR YOU IF

Frame: Alpha Platinum Aluminum frame with a tapered head tube, ZS headset, internal derailleur and dropper post routing, ISCG 05, threaded bottom bracket, UDH derailleur hanger, and 148x12mm thru-axle

Fork: Fox Rhythm 36, Float EVOL air spring with GRIP damper, 150mm travel, Boost110 15mm Kabolt axle

Drivetrain: Shimano Deore M6100 12-speed shifter and long-cage rear derailleur, 10-51t cassette, and Shimano MT512 crankset (30T)

Brakes: Shimano M6120 4-piston hydraulic disc brakes, 180-203mm Shimano RT66 rotors

Cockpit: Bontrager alloy or Comp handlebar (size-specific), Bontrager Comp stem, and a TranzX JD-YSI34 dropper post (150-200mm travel depending on size)

Weight: 14.18 kg (31.27 lb), size M; maximum combined rider/cargo weight limit of 300 lb (136 kg)

Standout feature: A genuine Fox 36 fork with EVOL air spring and GRIP damper, paired with 2.5" tubeless-ready tires and a long-travel dropper post for genuinely aggressive hardtail capability

THE TECH YOU GET

The Roscoe 8 Gen 4 suits riders who chase side hits, shred descents, and want a hardtail that can genuinely keep up on technical terrain at Hydraulink Trails or Knox Mountain. Its premium Fox 36 fork and wide 2.5" tires make it especially appealing to riders who want aggressive, rowdy trail performance without stepping up to full suspension. Our team at Fresh Air will help you find the right fit in-store at both Kelowna locations. Stop by to work with one of our experienced staff members, or call 250-763-3425.

THE FINAL WORD

Our team will set up your Fox Rhythm 36 fork's EVOL air spring pressure and GRIP damper settings for your weight and riding style, and get your tubeless tire setup dialled in on the Brevard Pro XR tyres for local trail conditions. We'll also set up your TranzX dropper post and handle contact point fit — saddle height and handlebar reach — so your pedaling and descending position both feel natural. Drop into Fresh Air Pandosy (555 Groves Ave) or Fresh Air Dilworth (1656 Dilworth Drive), or book an appointment online.

WHY YOU'LL LOVE IT

Q1: What size Trek Roscoe 8 Gen 4 do I need?
Trek offers the Roscoe 8 Gen 4 in five sizes, S through XL, with wheel size scaled to frame size for optimal handling. Check Trek's geometry chart for exact measurements, or come into either Fresh Air location and our team will get you set up on the right size.

Q2: Is the Roscoe 8 Gen 4 right for Hydraulink or Knox Mountain?
Yes — with a premium 150mm-travel Fox 36 fork, wide 2.5" tubeless-ready tires, and a standard dropper post, the Roscoe 8 is well suited to the technical singletrack and rock gardens found at Hydraulink Trails and Knox Mountain.

Q3: How do I set up the suspension on the Roscoe 8 Gen 4 for my weight and riding style?
Setup starts with the Fox Rhythm 36 fork's EVOL air spring pressure, set for your weight, along with the GRIP damper's compression and rebound settings. Our team can dial in sag and damper settings in-store to match your riding style.

SPECS

 

FRAMESET

Frame: Size: S, XL, L, M, ML
Alpha Platinum Aluminum, tapered head tube, ZS headset, internal derailleur & dropper post routing, ISCG 05, threaded BB, UDH, 148x12mm thru axle

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

Size: XL, L, M, ML
Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt X axle, 150mm travel

WHEELS

Hub Front: Size: S, XL, L, M, ML
Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle

Hub Rear: Size: S, XL, L, M, ML
Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano freehub, Boost148, 12mm thru axle

Skewer Rear: Size: S, XL, L, M, ML
Bontrager Switch thru axle, removable lever

Rim: Size: S, XL, L, M, ML
Bontrager Line TLR 30, Tubeless Ready, 28-hole, Presta valve

Tire: Size: S
Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5x2.50"

Size: XL, L, M, ML
Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.50"

Tire: Size: S, XL, L, M, ML
Bontrager TLR sealant, 180 ml/6 oz

Rim Strip: Size: S, XL, L, M, ML
Bontrager TLR

Max Tire Size: Frame: 29x2.60", Fork: See manufacturer

COMPONENTS

Saddle: Size: S, XL, L, M, ML
Bontrager Verse P3, steel rails

*Seatpost: Size: S
TranzX JD-YSI34, 150mm travel, internal routing, 31.6mm, 456mm length

Size: M, ML
TranzX JD-YSI34, 170mm travel, internal routing, 31.6mm, 500mm length

Size: XL, L
TranzX JD-YSI34, 200mm travel, internal routing, 31.6mm, 565mm length

*Handlebar: Size: S
Bontrager alloy, 31.8mm, 15mm rise, 750mm width

Size: XL, L, M, ML
Bontrager Comp, alloy, 31.8mm, 40mm rise, 780mm width

Grips: Size: S, XL, L, M, ML
Trek Line Comp, nylon lock-on

Stem: Size: S
Bontrager Comp, 31.8mm, 7 degree, 35mm length

Size: XL, L, M, ML
Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length

Headset: Size: S, XL, L, M, ML
FSA Orbit, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom, 1.5 crown

Brake: Size: S, XL, L, M, ML
Shimano M6120 4-piston hydraulic disc

Brake Rotor: Size: S, XL, L, M, ML
Shimano RT66, 6-bolt, 180mm

Size: S, XL, L, M, ML
Shimano RT66, 6-bolt, 203mm

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

DRIVETRAIN

Shifter: Size: S, XL, L, M, ML
Shimano Deore M6100, 12 speed

Rear Derailleur: Size: S, XL, L, M, ML
Shimano Deore M6100, long cage

*Crank: Size: S, XL, L, M, ML
Shimano MT512, 30T ring, 55mm chainline, 170mm length

Bottom Bracket: Size: S, XL, L, M, ML
Shimano BB-MT501 BSA

Cassette: Size: S, XL, L, M, ML
Shimano Deore M6100, 10-51, 12 speed

Chain: Size: S, XL, L, M, ML
Shimano Deore M6100, 12 speed

Max Chainring Size: 1x: 34T, min 28T

WEIGHT

Weight: 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).

 

 

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