Build 01: Endurance Road & Multi-Terrain
Giant FastRoad AR1
Custom ultra-endurance flat-bar machine. Dual-wheelset architecture spanning fast tarmac to technical gravel; one drivetrain, two entirely different bikes.
Drivetrain
1×11
Frame & Fork
Frame
ALUXX-Grade Aluminium12×142mm thru-axle · flat-mount disc · integrated rack, mudguard & kickstand mounts · smooth internal cable routing
Fork
Advanced-Grade CompositeFull-composite OverDrive tapered steerer · 12×100mm thru-axle
Stem
Giant Contact, 8° rise
Cockpit
Handlebar
Koga Denham (31.8mm)Integrated forward aero loop · swept-back alternative hand positions for extended ergonomics
Aero Bars
Redshift Quick-Release Clip-on AerobarsWith Extension Riser Kit · hot-swappable quick-release mounting · fully adjustable arm pads
Grips
Ergon GS1Wing profile · ulnar nerve pressure relief over long riding blocks
Saddle & Post
Saddle
Brooks C17 Cambium CarvedVulcanised rubber & organic cotton · pressure-relief cutout · all-weather rated
Seatpost
Giant D-Fuse CompositeProprietary D-shape cross-section for active vertical compliance
Drivetrain & Brakes
Drivetrain
Rear Derailleur
Shimano Deore XT RD-M5120-SGSShadow+ clutch enabled for chain retention on rough terrain
Shifter
Shimano Deore SL-M5100-R1×11 speed
Crankset
Shimano GRX FC-RX600-1, 40TGravel-optimised chainline (+2.5mm outboard vs standard road)
Cassette
Shimano Deore CS-M5100, 11–51T463% gear range · full loaded backcountry climbing capability
Chain
Shimano 11-speedSIL-TEC coating (CN-HG601 / CN-HG701)
Bottom Bracket
Hope Technology 24mm ThreadedCNC-machined alloy cups · high-grade sealed stainless bearings
Brakes
Levers
Tektro HD-R280Flat-mount hydraulic disc
Rotors
Tektro, 160mmFront & rear
Dual Wheelset Architecture
Wheelset
DT Swiss ER 1600 Spline22mm inner width · 350-based Ratchet System hub
Tyres
Continental Grand Prix 5000 AS TR, 700×35cAll-season tubeless-ready · exceptional wet-weather grip & puncture resistance · Vittoria Insert fitted
Wheelset
DT Swiss GR 1600 Spline24mm inner width · wide rim bed for high-volume tyres
Rear Tyre
Vittoria Terreno T50 Pro, 700×45cFast-rolling centre tread · progressive side lugs for cornering bite · Vittoria Insert fitted
Front Tyre
Option 1: Balanced SpeedVittoria Terreno T50 Pro, 700×45c
Matched profile for uniform rolling speed on hardpack · Vittoria Insert fitted
Option 2: Enhanced Trail GripVittoria Mezcal III G2.0, 700×44c
XC MTB tread for loose or muddy tracks where front-wheel tracking is critical · Vittoria Insert fitted
Luggage & Hydration
Bags & Storage
Rear
Tailfin Cargo PackPrimary rear storage · seat rail mount system
Stem
Restrap Race Stem Bag × 2Dual stem-mount configuration for accessible front storage
Top Tube
Restrap Race Top Tube Bag, MediumMid-ride nutrition and device access
Frame
Restrap Race Frame Bag, LargeFull-triangle capacity for tools, spares, and extended supplies
Hydration
Primary
Fidlock 800ml × 2, Frame mountedMagnetic one-handed engagement · mounted within the frame triangle
Optional
Fidlock 800ml × 2, Tailfin strut mountedAdditional 1,600ml capacity via Tailfin Cargo Pack strut mounts for extended self-supported stages
Build 02: Cross-Country & Wilderness Bikepacking
Giant XTC 29 SLR1
Custom self-supported ultra-endurance hardtail. Dual-wheelset architecture spanning XC race singletrack to extended gravel wilderness missions.
Drivetrain
1×12
Frame & Fork
Frame
Giant ALUXX SLR-Grade Aluminium12×148mm Boost thru-axle · internal cable routing · 1×-specific design
Fork
Giant Crest 34 RRL, 100mm travel15×110mm Boost axle · tapered steerer · bar-mounted remote lockout
Stem
Custom 80mm, 31.8mm clamp
Cockpit
Handlebar
Jones H-Bar (31.8mm)Multiple hand positions · front-end leverage control · loop area for bikepacking luggage
Aero Bars
Redshift Quick-Release Clip-on AerobarsWith Extension Riser Kit · hot-swappable between aero tuck and technical trail positions
Grips
Ergon GS1Wing profile for maximum hand pressure distribution over long duration
Saddle & Post
Saddle
Brooks C17 Cambium CarvedAll-weather vulcanised rubber · pressure-relief cutout · long-distance skeletal comfort
Seatpost
Redshift Endurance Pro SuspensionDual-elastomer isolation · active travel damping trail chatter & corrugated dirt roads
Drivetrain & Brakes
Drivetrain
Rear Derailleur
Shimano Deore XT M-810012-speed · Shadow+ clutch
Shifter
Shimano SLX M-71001×12 speed
Crankset
Shimano GRXCustom 1× chainline configuration
Cassette
Shimano 10–51T, 12-speed
Chain
Shimano 12-speedSIL-TEC coating (CN-M7100 / CN-M8100)
Bottom Bracket
Shimano press-fit
Brakes
Levers
Shimano BR-MT500Hydraulic disc
Rotors
Shimano RT-10 CenterLock180mm front · 160mm rear
Dual Wheelset Architecture
Wheelset
DT Swiss X 1900 SplineLightweight XC-specific alloy · high-precision pawl hubs
Rear Tyre
Vittoria Mezcal III XC Race, 29×2.35"Fast-rolling centre ridge · effective edges for high-speed summer trail · Vittoria Insert fitted
Front Tyre
Option 1: Balanced SpeedVittoria Mezcal III XC Race, 29×2.35"
Matched rear profile for uniform rolling speed and drift control · Vittoria Insert fitted
Option 2: Enhanced Trail GripVittoria Barzo, 29×2.4"
Alternating square knobs · deeper block pattern for loose, wet or technical mountain terrain · Vittoria Insert fitted
Wheelset
Secondary 29er/700c DiscBoost-spaced: 15×110mm front · 12×148mm rear, matched to frame & fork interfaces
Tyres
Vittoria Terreno T50 Pro, 700×45cFast gravel casing · smooth-rolling centre · progressive side lugs; transforms the XTC into a gravel bike persona on fire roads and hardpack routes · Vittoria Insert fitted
Racks & Luggage
Rear System
Rear Rack
Aeroe Spider Rear RackModular platform system · configurable load architecture
Rack Config
Option 11 × Aeroe Rack
Option 22 × Aeroe Racks
Option 33 × Aeroe Racks
Option 4: Volume1 × Aeroe Quickpod 11L
Single drybag pod in place of rack array for maximum enclosed capacity
Front System
Bar Rack
Aeroe Handlebar RackFront load distribution · compatible with dry bags and modular accessories
Front Spider
Aeroe Spider, FrontPrimary light mount · optional additional rack for supplementary front storage