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BH Aero TT vs Dimond Marquise
Pick up to 4 bikes. Rows line up component by component. Highlighted rows differ, and green marks the best value where lower or higher is clearly better.
Key differences
- Only the Dimond Marquise has integrated storage.
BH Aero TT
Dimond Marquise
| BHAero TT | DimondMarquise | |
|---|---|---|
| Overview | ||
| Brand | BH | Dimond |
| Build | Aero TT 6.0 | Marquise frameset |
| Build notes | — | Price 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. |
| Price (MSRP) | €6,500€6,500£5,900 | $7,499$7,499$7,499 |
| Model year | 2026 | 2026 |
| Generation | Aerolight Disc / Aero TT | Disc (launched 2018) |
| Launched | 2020-02 | 2018-10 |
| Discipline | Triathlon | Triathlon |
| UCI legal | Not stated | No |
| Verdict (out of 100) | ||
| Overall score | 69 | — |
| Aero | 72 | 72 |
| Frame | 72 | 64 |
| Components | 78 | — |
| Hydration & storage | 45 | 80 |
| Fit | 66 | 58 |
| Practicality | 72 | 64 |
| Price | 77 | — |
| Frame & fork | ||
| Frame material | Carbon (Aero TT ECL Evo Carbon Layup, monocoque, Hollow Core Carbon Technology) | Carbon fibre |
| Fork material | Carbon (integrated tapered, 1.5") | — |
| Frame weight | — | 1,790 g3.95 lb |
| Weight measured on | — | As listed by Dimond (size not stated) |
| Frame sizes | S, M, L, XL (BH sizes SM, MD, LA, XL) | II, III, IV, V |
| Colours | — | Custom paint included (Dimond NEXA and DIDSPADE schemes or one-off designs) |
| Compatibility & standards | ||
| Brake type | Flat-mount disc | Flat-mount hydraulic disc |
| Max rotor size | 160 mm | — |
| Wheel size | 700c | 700c |
| Max tire width | 28 mm | — |
| Bottom bracket standard | — | PF30 (46 mm diameter x 68 mm wide) |
| Front axle | 12 mm thru-axle | 12 mm thru-axle |
| Rear axle | 12 mm thru-axle | 12 mm thru-axle |
| Drivetrain compatibility | Shimano Di2 on all builds | Shimano Di2, SRAM eTap, mechanical (1x only) |
| Mechanical shifting possible | — | Yes |
| 1x compatible | — | Yes |
| Cable routing | Fully internal (ACR steering system) | — |
| Electronic battery location | Inside the stem, held by a clip | — |
| 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 | ||
| Aerobar system | Vision Trimax Carbon ACR base bar and extensions with BH Aero TT stem | — |
| Seatpost type | BH Aero TT seatpost with 90 mm of travel and integrated clamp | — |
| Fit notes | — | Headset IS41 28.6 / IS41 30.0. Dimond lists a minimum saddle height per size. |
| Aerodynamics | ||
| Tube profile | Kammtail | — |
| 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 | BH dealers and BH online store (Europe) | Direct from Dimond (custom builds via consultant or 3D configurator) |
| Drivetrain | ||
| Groupset | Shimano 105 Di2 | — |
| Launched | 2022 · current generation | — |
| Speeds | 12-speed | — |
| Electronic | Yes | — |
| Drivetrain | 2x12 | — |
| Shifters | Shimano 105 Di2 Hydra | — |
| Crankset | Rotor Aldhu | — |
| Chainrings | 54/39 | — |
| Front derailleur | Shimano 105 Di2 | — |
| Rear derailleur | Shimano 105 Di2 | — |
| Cassette | Shimano 105 | — |
| Range | 11-34 | — |
| Speeds | 12-speed | — |
| Chain | Shimano 105 | — |
| Brakes | ||
| Brake calipers | Shimano 105 hydraulic disc | — |
| Type | Hydraulic disc, flat mount | — |
| Wheels & tires | ||
| Wheelset | Vision Team TC 30 | — |
| Tires | Hutchinson Challenger | — |
| Tire width | 28 mm | — |
| Cockpit | ||
| Basebar | Vision Trimax Carbon ACR | — |
| Material | Carbon | — |
| Stem | BH Aero TT | — |
| Headset | BH Aero TT | — |
| Saddle & seatpost | ||
| Saddle | BH Ergo G | — |
| Seatpost | BH Aero TT | — |
| Saddle position range | 90 mm travel | — |
| Geometry (smallest – largest size) | ||
| Sizes | S, M, L, XL | II, III, IV, V |
| Rider height min | — | 152–185 cm5′0″–6′1″ |
| Rider height max | — | 162–190 cm5′4″–6′3″ |
| Stack | 494–547 mm19.4–21.5″ | 490–585 mm19.3–23″ |
| Reach | 409–443 mm16.1–17.4″ | 390–440 mm15.4–17.3″ |
| Seat angle min | 76° | 79° |
| Seat angle max | 76° | 79° |
| Head tube angle | — | 72.5° |
| Head tube length | 85–140 mm3.3–5.5″ | 75–155 mm3–6.1″ |
| Effective top tube | 531–579 mm20.9–22.8″ | — |
| Seat tube length | 510–560 mm20.1–22″ | — |
| Chainstay | 380 mm15″ | 400 mm15.7″ |
| Wheelbase | 970–1,018 mm38.2–40.1″ | — |
| BB drop | 74 mm2.9″ | 75 mm3″ |
| Fork length | 373 mm14.7″ | — |
| Front centre | 589–638 mm23.2–25.1″ | 570–650 mm22.4–25.6″ |
| Saddle height min | — | 635–785 mm25–30.9″ |
| Wheel size | 700c | 700c |
Geometry overlay
Pick a size for each bike to see frames and arm-pad ranges on top of each other.
Drawn to scale (how to read it).