PRISMA
Aero Gravel
Reserve

Prisma Terra — Gravel

Every road.
And the ones
that aren't.

A T800 carbon-fibre gravel frame on a 1×11 Shimano GRX drivetrain — light enough to hold a line on tarmac, built to leave it the moment the road turns to gravel.

Configure yours See every angle
Weight
8.7 kg
Drivetrain
1×11 GRX
Tyres
700c · 2.1"
The Prisma Terra gravel bike in full side profile — matte-black T800 carbon frame, Shimano GRX drivetrain and wide all-road tyres.
Scroll

The road ends. The ride keeps going.

Built for both

Every part, in its place.

01 Carbon seatpost Ostro T800 carbon 02 Ostro carbon frame T800 · thru-axle 12×142 03 Shimano GRX 1×11 GRX600 · hydraulic 04 Integrated cockpit Sealed bearings · 52×52 05 Full carbon fork Ostro · thru-axle 12×100 06 700c on 2.1" tyres Hydraulic disc brakes

One frame. Every surface.

Frame

Ostro carbon monocoque

A high-modulus T800 carbon-fibre frame, laid up as a single shell with flat-mount disc tabs and 12×142 thru-axle. Stiff where it drives, compliant where the ground gets rough — one structure, no bonded junctions.

T800 carbon · 8.7 kg net

Build

Shimano GRX, geared for dirt

A 1×11 Shimano GRX600 groupset on Shimano RX400 hydraulic discs — a single, wide-range front ring so there's nothing to drop on a rough descent and one clean line from lever to rotor.

GRX600 1×11 · hydraulic disc

Ride

Rolls over the rough

700c wheels on wide 2.1" tyres and a full carbon fork: grip and float on loose ground, momentum on the flat. Light, planted and unbothered when the tarmac runs out.

700c · 2.1" · 150 kg load

Resolved from every angle.

Prisma Terra — three-quarter view

Three-quarter · 45°

Prisma Terra — head-on, front

Head-on · 0°

Prisma Terra — top-down view

Top-down

Prisma Terra — from the rear

From the rear · 180°

Shot from every side — three-quarter, head-on, top-down and rear — so nothing about the shape stays hidden.

Every measurement, on the record.

Type
Gravel bike — all-road
Frame
Ostro T800 high-modulus carbon · disc & thru-axle 12×142
Fork
Ostro full carbon · thru-axle 12×100 · 700C
Cockpit
Aerospace-grade, sealed bearings · 52×52 mm
Drivetrain
Shimano GRX600 1×11 or Wheeltop GEX 1×13 wireless · hydraulic
Brakes
Shimano RX400 hydraulic disc · 160/160 mm
Wheels
700c · aluminium-alloy rims
Tyres
700c / 29 × 2.1"
Weight
8.7 kg net · 12 kg gross
Load capacity
150 kg
Sizes
50 · 53 · 56 · 58 · 61
Origin
Guangdong, China
Brand
Prisma
Edition
First edition, individually numbered

Build yours.

Hydraulic disc brakes included on every build · pedals not included.

Frame size
Drivetrain

Pedals not included.

Colour

More colours coming soon.

Your build CHF 1'530* Size 50 · Shimano GRX600 · Raw Silver * Includes CHF 400 shipping to our warehouse in Germany.
Reserve this build

First edition

Reserve a first-edition Prisma Terra.

The first run is numbered and limited. Leave your email to hold your size — no charge until it ships.

No charge today · Ships Q4 · Cancel anytime