01 / 0503 — XC Hardtail
Lightweight. Responsive. Built to move.
A razor-sharp, ultra-lightweight carbon hardtail lineup engineered for pure cross-country speed. Built around a high-modulus, hyper-responsive carbon chassis, the Iso transforms every ounce of pedaling energy into instantaneous forward momentum — with the low maintenance of a hardtail.
- Best for
- Aspiring XC racers, fast singletrack exploring and riders seeking maximum efficiency per dollar.
- Terrain
- XC trails, fast rolling singletrack, race courses
- Frame
- High-modulus carbon hardtail
- Suspension
- Hardtail — front suspension fork only
Configure
Select tier, fit and finish
From
$2,199
Tier
Frame size
Height guide on the size table
Colour
Quantity
Pricing for this tier is confirmed by Cross Bike Co with your build. The range starts at $2,199. This concept does not process payment — orders and checkout stay on the live Squarespace store.
Tiers
Pick your intent.
Each tier changes drivetrain, wheelset, cockpit and suspension specification — not just the paint.
Core
—The people's bike — efficient XC value.
RS
$2,699Shimano Deore 12-speed, carbon wheels, 120mm fork.
RS 2
$3,849Wireless electronic shifting and carbon throughout.
ONE
$4,999Flagship hardtail specification.
Published builds
Component specification.
Specification as published by Cross Bike Co. Final build sheets are confirmed with the workshop before an order is taken.
Iso One
$4,999
- Fork
- Manitou Mattoc Pro 29", 120 mm
- Seatpost
- ZOOM hydraulic, infinitely adjustable
- Shifters
- LTWOO EGR Flat Bar Gravel MTB Wireless Groupset
- Rear derailleur
- LTWOO EGR Flat Bar Gravel MTB Wireless Groupset, clutch
- Crankset
- KORE Carbon Fiber Mountain Bike Crank 32t
- Wheels
- Premium Carbon Fiber 29er Pro33
- Tires
- CST Jack Rabbit 29 x 2.25
Iso RS 2
$3,849
- Fork
- XFusion RC32 29, 120mm
- Seatpost
- ZOOM hydraulic, infinitely adjustable
- Shifters
- LTWOO EGR Flat Bar Gravel MTB Wireless Groupset
- Rear derailleur
- LTWOO EGR Flat Bar Gravel MTB Wireless Groupset, clutch
- Crankset
- Alloy Crankset 32t Chainring
- Wheels
- 10PLUS MTB Carbon Wheelset
- Tires
- CST Jack Rabbit 29 x 2.25
Iso RS
$2,699
- Fork
- XFusion RC32 29, 120mm
- Seatpost
- ZOOM hydraulic, infinitely adjustable
- Shifters
- SHIMANO DEORE M6100
- Rear derailleur
- SHIMANO DEORE RD-M6100 SGS
- Crankset
- Alloy Crankset 32t Chainring
- Wheels
- 10PLUS MTB Carbon Wheelset
- Tires
- CST Jack Rabbit 29 x 2.25
Iso Core
—
Finishes & fit
Colours and frame sizes.




Full geometry charts for the Phosphate and Iso are published on the live store. Custom paint is available for an additional fee.


