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Product nameTrek Superfly FS 8 (2015)Trek Superfly FS 8Cannondale Trigger 2 (2019)Cannondale Trigger 2Marin Bikes Hawk Hill Jr (2019)Marin Bikes Hawk Hill JrTrek Fuel EX 5 Plus (2019)Trek Fuel EX 5 Plus
ManufacturerTrekCannondaleMarin BikesTrek
CategoryFull-Suspension » Mountain » BikesFull-Suspension » Mountain » BikesFull-Suspension » Mountain » BikesFull-Suspension » Mountain » Bikes
Approx. MSRP$2,629.00 (USD)$5,550.00 (USD)$1,599.99 (USD)$2,249.99 (USD)
Average user ratingBe the first to write a reviewBe the first to write a reviewBe the first to write a reviewBe the first to write a review
Sizes15.5, 17.5, 18.5, 19.5, 21.5, 23"Small, Medium, Large, X Large13"15.5 Inch, 17.5 Inch, 18.5 Inch, 19.5 Inch, 21.5 Inch
ColorsBlack Titanite/Trek CyanBlack Pearl W/GraphiteSatin Charcoal/Cyan, Satin Charcoal/PurpleTrek Black
Description

The Superfly FS 8 from Trek offers the same performance as its carbon racebike siblings, but this time crafted in lightweight aluminum. This sleek cross country machine features a Fox Evolution suspension setup for impressive control on rough terrain. Shimano SLX and Deore components make up the drivetrain and braking system, and parts from FSA and KMC add performance. Bontrager wheels and tires finish things off.

The Hawk Hill Jr is built around our MultiTrac suspension system and is our most capable kids bike ever, with all of the modern adult tech and trail geometry in a package for the younger rider. Lightweight 24" wheels and air tuned suspension lead to a fun bike out on the trail, equally at home on rolling hills or downhill singletrack. Switch to 26" wheels down the line as the Hawk Hill Jr grows with your kid.

Year

2015

2019

2019

2019

Country of origin

U.S.A.

U.S.A.

Frame type

Alpha Platinum Aluminum, ABP Convert, E2 tapered head tube, internal derailleur & dropper post routing, press fit BB, Flow Mold carbon swing link, G2 Geometry, 100mm travel

Features

G2 Geometry:
Conventional wisdom says 29ers have sleepy handling compared to 26" wheel bikes. We solved that with G2 Geometry, featuring a custom-offset fork and advanced frame geometry for precise handling at low speed without compromising high-speed stability. It’s why Trek 29ers handle better than any others.

Flow Mold carbon swing link:
Our exclusive Flow Molded carbon linkage uses a unique carbon shaping process that minimizes material and weight while maintaining a strong bracing angle for a more rigid frame.

Alpha Platinum Aluminum:
Our premium lightweight aluminum is continuously cold extruded and butted at multiple points for ultimate weight reduction and superior strength. Frames built with Alpha Platinum are hydroformed to create the most sophisticated shapes for the lightest weight, and are finished using Trek's smooth-weld finishing process.

ABP:
Other full suspension systems firm up under braking, reducing your control when you need it most. Trek’s patented Active Braking Pivot solves that by keeping your suspension active whether you're on the brakes or off. The ABP axle is fully convertible between 142x12 and 135x5 standards, offers easy wheel installation, and is at least 20% stiffer than any open dropout design.

E2 tapered head tube:
E2 is the evolution of the traditional 1-1/8" headset to a tapered head tube, fork, and headset system. E2 tapers from a 1.5" lower to a 1-1/8" upper headset to provide more material where it matters most, resulting in a stronger, lighter frame with point-and-shoot control.

Internal shock routing:
Internal rear shock remote lockout routing solves the persistent issue of how to route the remote lockout cable by running it through the top tube for a clean, protected solution.

Dropper post internal routing:
Dropper posts are great for while-you-ride seat height adjustments, but cable routing has always been an issue. RockShox Reverb Stealth routes the hydraulic housing directly through the frame for the sleekest setup you've seen.

Front derailleur pivot mount:
Innovative derailleur placement doesn’t require a band clamp, or the additional frame material required for direct mounting. Reduces weight without compromising performance.

Fully integrated head tube:
A fully integrated head tube eliminates the need for headset cups, reducing overall weight without sacrificing performance.

Press-fit bottom bracket:
Press-fit BB is a bottom bracket shell that allows the bearings to press into the frame rather than threading in as on standard bottom brackets. This provides a wider stance for the frame’s tubing juncture, resulting in a stronger frame. This wider stance also mimics the benefits of an OCLV Carbon-only technology, BB95.

Shock type

Fox Evolution Series Float, CTD (climb-trail-descend) damper, rebound, tuned by Trek in California, 6.5x1.5"

X-Fusion O2 Pro R, 190x51mm, Custom Tune, 22.2mm x M8 Hardware

Hub front

Bontrager, 15mm

Formula, 100x15mm, Centerlock Disc, 32H

Hub rear

Bontrager, 142x12mm

Joytech, 135mm, Quad Sealed Bearings, Centerlock Disc, 32H

Spokes

Bontrager

DT Swiss Competition (Ai Offset dish - rear)

14g Stainless Steel

Tires

Bontrager XR1 Expert, Tubeless Ready, aramid bead, 29x2.20"

Maxxis Minion DHF 27.5 x 2.5" front, High Roller II 2.4" rear, 3C Compound, EXO puncture protection, tubeless ready

Vee Tire, 24x2.25", Wire Bead

Schwalbe Nobby Nic Performance, Tubeless Ready, 27.5x2.80

Shifters

SRAM X01 Eagle, 12-speed

Shimano Deore 1x10-Speed

Shimano Deore M6000, 10 speed

Front derailleur

Shimano Deore, low direct mount

Rear derailleur

Shimano Deore XT, Shadow Plus

Crankset

Shimano SLX, 38/24

Truvativ Descendant Carbon Ai Custom

Marin Forged Alloy 1x10, Hollow Spindle, Steel Narrow-Wide 30T Chainring, 76mm BCD

Race Face Ride

Cassette

Shimano HG50, 11-36, 10 speed

SunRace 10-Speed, 11-42T

Pedals

Kids Specific Nylon Pedal

Not included

Seat post

Cannondale DownLow Dropper Post, internal routing, 31.6, 100mm (S), 125mm (M), 150mm (L-XL)

Bontrager alloy, 2-bolt head, 31.6mm, 12mm offset

Saddle

Bontrager Evoke 2, chromoly rails

Fabric Scoop Shallow Elite, cro-mo rails

Marin Speed Concept

Bontrager Arvada

Handlebars

Cannondale C1 Riser, Carbon, 15mm rise, 9° sweep, 4° rise, 780mm

Bontrager alloy, 31.8mm, 15mm rise, 720mm width

Stem

Bontrager Race Lite, 31.8mm, 7 degree

Cannondale C1, 3D Forged 6061 Alloy, 1-1/8", 31.8, 0°, 45mm

Marin 3D Forged Alloy, 45mm

Bontrager Rhythm Comp, 31.8mm clamp, 0 degree

Headset

FSA IS-2, E2, sealed cartridge bearing

Integrated, 1-1/8 to 1.5", sealed angular contact bearings

FSA No 57E, Sealed Cartridge Bearings, 1-1/8" x 1-1/2”

Knock Block Integrated, sealed cartridge bearing, 1-1/8-inch top, 1.5-inch bottom

Brakes

Shimano SLX, Hydraulic disc

SRAM Guide RS hydro disc, 180/180mm Centerline rotors

Shimano BR-M315 Hydraulic Disc

Shimano MT200 hydraulic disc

Chain

KMC X10, 10-speed

SRAM X01 Eagle, 12-speed

KMC X10

KMC X10

Brake levers

Shimano SLX

Brake rotor

Shimano

180mm F/160mm R

Material

Aluminum

Recommended for

XC Mountain, Mountain

Young trails riders with aspirations

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