AeroAddicts

DimondMarquise

Triathlon2026Disc (launched 2018)Disc brakesNot UCI legal

Dimond's disc-brake version of its beam-frame Marquise, a custom-painted carbon triathlon bike with no seat tube. It has two built-in storage compartments: the large 'Lunch Box' bento in the beam behind the stem and the 'TOTES' flat-kit box above the bottom bracket. It runs 12 mm thru-axles and flat-mount brakes, and is sold direct from Des Moines, Iowa as a frameset or in Race and Premium builds.

Dimond Marquise, drive side
© Dimond Bikes
From
$7,499$7,499$7,499
Builds
1
Sizes
4
Frame weight
1,790 g3.95 lb

Design sketch, generated from the manufacturer's photo

Our verdict

No overall score: there's no complete-bike price to rate

A distinctive custom-painted beam bike for triathletes who value built-in storage, with an unusually large bento and a flat-kit box inside the frame. You trade away published aero data, in-frame hydration and a light frame, and you buy direct with fixed seat angles across four sizes.

Scored Oct 2026

  • + Integrated hydration and storage

AI-drafted from the specs on this page and reviewed before publishing. Scores are relative to every bike in the catalog when they were given, so they drop as newer bikes and parts raise the bar.

Aero
72/100

Aero claims and front-end integration

Frame
64/100

Carbon grade, weight and warranty

Hydration & storage
80/100

Hydration and storage in the frame

Fit
58/100

Sizes and adjustment range

Practicality
64/100

Travel, standard parts, servicing

How each category is scored

Bike duel

Frame & platform

What each race allows

Frame & fork

Frame material
Carbon fibre
Frame weight
1,790 g3.95 lb
Weight measured on
As listed by Dimond (size not stated)
Frame sizes
II, III, IV, V
Colours
Custom paint included (Dimond NEXA and DIDSPADE schemes or one-off designs)

Compatibility & standards

Brake type
Flat-mount hydraulic disc
Wheel size
700c
Bottom bracket standard
PF30 (46 mm diameter x 68 mm wide)
Front axle
12 mm thru-axle
Rear axle
12 mm thru-axle
Drivetrain compatibility
Shimano Di2, SRAM eTap, mechanical (1x only)
Mechanical shifting possible
Yes
1x compatible
Yes

Hydration & storage

Integrated storage
Yes
Storage volume
700 ml23.7 fl oz
Storage details
Lunch Box bento built into the beam behind the stem, with a magnetic pop-up latch: about 700 ml in medium and large frames and 550 ml in the smaller sizes. TOTES (Tools Or Technical Equipment Storage) compartment above the bottom bracket holds a tube, levers, CO2 and a small multitool.
Top tube bento box
Yes

Fit & adjustability

Fit notes
Headset IS41 28.6 / IS41 30.0. Dimond lists a minimum saddle height per size.

Travel, maintenance & warranty

Travel & packing
Dimond sells the Carat Case, a set of padded sleeves for the frame, beam, fork and aerobar made for packing a Dimond into Rüster Sports' Armored Hen House case, which is sized to count as standard checked luggage.
Headset bearings
Cane Creek IS41 (IS41/28.6 upper, IS41/30 lower)
Derailleur hanger
Proprietary (Dimond disc-brake triathlon hanger, sold by Dimond)
Maintenance
Dimond's warranty excludes damage from rear-axle clamping stationary trainers and from too little seatpost insertion. Dimond sells a Stationary Trainer Adapter and says riding a rear-axle trainer without it voids the warranty.
Frame warranty
Frameset covered against manufacturing defects for 6 years from purchase, original owner only (not transferable); hardware, paint, graphics and Dimond forks for 1 year
Sold via
Direct from Dimond (custom builds via consultant or 3D configurator)

Photos

Design sketches

Design sketch of the Dimond Marquise, side view
Side view · Design sketch, generated from the manufacturer's photo
Design sketch of the Dimond Marquise, three-quarter view
Three-quarter view · Design sketch, generated from the manufacturer's photo
Design sketch of the Dimond Marquise, front view
Front view · Design sketch, generated from the manufacturer's photo

Builds & components

Highlighted rows differ between builds. Green marks the best value.

Dimond Marquise builds
Marquise frameset
Overview
Price (MSRP)$7,499$7,499$7,499
TypeFrameset
NotesPrice includes custom paint. Race and Premium complete builds and à la carte custom builds are offered through Dimond's configurator, but Dimond does not list their prices on the product page.

Marquise price & value

Building up the Marquise frameset

Included: frame and fork only, as listed.

Still to buy: Groupset, Crankset, Cassette, Chain, Brake calipers, Wheelset, Tires, Aerobar system, Seatpost, Saddle, Pedals.

Spare & upgrade parts from Dimond

PartPart numberPrice
Rear derailleur hanger (disc brake)For Dimond disc-brake triathlon bikes.—$40$40$40
Rear axle assembly (disc brake)Thru-axle, washer, nut, flathead screw and rear derailleur hanger. Listed by Dimond for its triathlon/TT bikes generally, not only the Marquise.—$60$60$60
Front axle assembly (disc brake)Thru-axle, washer, nut and flathead screw. Listed by Dimond for its triathlon/TT bikes generally, not only the Marquise.—$40$40$40
Quick-release 12 mm rear thru-axle—$37$37$37
Front derailleur hangerIncludes bolts.—$30$30$30
Seatpost (carbon, uncut)Listed by Dimond for its triathlon/TT bikes generally, not only the Marquise.—$200$200$200
XL triathlon seatpost10 cm longer than the standard post, uses the same Ritchey one-bolt saddle clamp.—$250$250$250
Seatpost collarFront and back AL6061 pieces with two M5 bolts. Listed by Dimond for its triathlon/TT bikes generally, not only the Marquise.—$120$120$120
Saddle clamp (Ritchey one-bolt)Alloy (round) or carbon (oval) version. Listed by Dimond for its triathlon/TT bikes generally, not only the Marquise.—$50$50$50
Pivot boltMale/female bolts with two washers. Listed by Dimond for its triathlon/TT bikes generally, not only the Marquise.—$45$45$45
Top cable guideListed by Dimond for its triathlon/TT bikes generally, not only the Marquise.—$17$17$17
Aerobar riser 5 mmLonger riser bolts (sold separately, USD 5 each) may be needed when changing stack.—$15$15$15
Aerobar riser 10 mm—$20$20$20
Aerobar riser 20 mm—$25$25$25
Aerobar riser 30 mm—$30$30$30
Stationary trainer adapterDimond says using a rear-axle clamping trainer without it voids the warranty.—$199$199$199
Carat Case packing sleevesFrame, beam, fork and aerobar sleeves for the Armored Hen House case.—$125$125$125

Ownership checklist

1 of 4 known checks pass, 3 not published by Dimond. Why these checks

  • ✕

    Threaded bottom bracket

    PF30 (46 mm diameter x 68 mm wide)

  • ✕

    UDH derailleur hanger

    Proprietary (Dimond disc-brake triathlon hanger, sold by Dimond)

  • ✕

    Standard 12×142 mm rear axle

    12 mm thru-axle

  • ✓

    Works with mechanical shifting

  • ?

    Fits third-party aerobars

  • ?

    Rear disc wheel compatible

  • ?

    Fit kept when packed

Marquise geometry

Dimond Marquise geometry
IIIIIIVV
Rider height min152 cm5′0″162 cm5′4″175 cm5′9″185 cm6′1″
Rider height max162 cm5′4″180 cm5′11″190 cm6′3″—
Stack490 mm19.3″515 mm20.3″540 mm21.3″585 mm23″
Reach390 mm15.4″405 mm15.9″425 mm16.7″440 mm17.3″
Seat angle min79°79°79°79°
Seat angle max79°79°79°79°
Head tube angle72.5°72.5°72.5°72.5°
Head tube length75 mm3″102 mm4″128 mm5″155 mm6.1″
Chainstay400 mm15.7″400 mm15.7″400 mm15.7″400 mm15.7″
BB drop75 mm3″75 mm3″75 mm3″75 mm3″
Front centre570 mm22.4″585 mm23″615 mm24.2″650 mm25.6″
Saddle height min635 mm25″675 mm26.6″725 mm28.5″785 mm30.9″
Wheel size700c700c700c700c

Side view & pad range

Your positionYour position (optional)

Drawn to scale (how to read it).

Dimond Marquise · III

How the geometry rides

The Marquise in size III against the middle size of 29 other bikes: tendencies from geometry, not a ride review (how to read this).

  • Front centre585 mm23″

    shortestlonger than 29% of 29 bikeslongest

  • Chainstay400 mm15.7″

    shortestlonger than 25% of 53 bikeslongest

    Short chainstays: a compact, responsive rear end.

Compare on the stack & reach chart

Good to know

  • Design

    The disc version keeps the rim-brake Marquise's storage and aero shaping, and adds 12 mm thru-axles and flat-mount calipers placed with aerodynamics in mind.

    Source
  • Integration

    The Lunch Box bento holds about 700 ml in medium and large frames (550 ml in smaller ones), which Dimond says is almost three times the size of most storage systems, and enough for around 13 gels.

    Source
  • Integration

    The TOTES compartment above the bottom bracket is sized for a tube, two tyre levers, two CO2 cartridges, an inflator head and a small multitool.

    Source
  • Compatibility

    The frame takes Shimano Di2 or SRAM eTap electronic groups, and mechanical groups only in a 1x setup.

    Source
  • History

    Dimond revealed the disc Marquise at the 2018 Ironman World Championship in Kona and opened pre-orders in October 2018, with framesets shipping in January 2019. It was Dimond's first disc-brake model and took more than a year to develop.

    Source
  • Versions

    A rim-brake Marquise is still sold alongside it: $7,199 for the frameset, $10,999 for the Race build and $14,199 for the Premium build.

    Source
  • Versions

    In Dimond's late-2024 line-up the Marquise ($7,499) sits below the Mogul ($10,000 frame) and Ikon ($8,499), and above the Trilliant and Carbonado.

    Source

Marquise FAQ

Is the Dimond Marquise UCI legal?+

No. The Dimond Marquise is not UCI legal. That is fine for non-drafting triathlon, but it cannot be used in UCI-sanctioned time trials.

How much does the Dimond Marquise cost?+

Manufacturer prices (MSRP): $7,499 across 1 listed build: Marquise frameset.

How much does the Dimond Marquise weigh?+

The frame weighs 1,790 g (3.95 lb) (As listed by Dimond (size not stated)).

What sizes does the Dimond Marquise come in?+

4 sizes: II, III, IV and V. The manufacturer recommends them for riders from 152 cm (5′0″) to 190 cm (6′3″).

What seat angle does the Dimond Marquise have?+

79° effective seat tube angle.

Does the Dimond Marquise have integrated storage?+

Yes, 700 ml (23.7 fl oz). Lunch Box bento built into the beam behind the stem, with a magnetic pop-up latch: about 700 ml in medium and large frames and 550 ml in the smaller sizes. TOTES (Tools Or Technical Equipment Storage) compartment above the bottom bracket holds a tube, levers, CO2 and a small multitool. A top tube bento box is integrated.

Which groupsets are compatible with the Dimond Marquise?+

Drivetrain compatibility: Shimano Di2, SRAM eTap, mechanical (1x only). Mechanical shifting can be fitted. 1x drivetrains are supported. Bottom bracket: PF30 (46 mm diameter x 68 mm wide).

Is the Dimond Marquise easy to travel with?+

Dimond sells the Carat Case, a set of padded sleeves for the frame, beam, fork and aerobar made for packing a Dimond into Rüster Sports' Armored Hen House case, which is sized to count as standard checked luggage.

What warranty does the Dimond Marquise frame have?+

Frameset covered against manufacturing defects for 6 years from purchase, original owner only (not transferable); hardware, paint, graphics and Dimond forks for 1 year

Sources

Dimond Marquise data last updated · How the data is checked ·