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Aurum Essentia vs Rose Shave FF
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
- The Aurum Essentia starts €580 cheaper (€5,020 vs €5,600 for the Rose Shave FF).
- Our verdict scores the Rose Shave FF higher overall: 82/100 vs 74/100.
- Tire clearance: up to 30 mm on the Aurum Essentia vs 35 mm on the Rose Shave FF.
- The Aurum Essentia comes in 5 sizes, the Rose Shave FF in 6.
Aurum Essentia
Rose Shave FF
| AurumEssentia | RoseShave FF | |
|---|---|---|
| Overview | ||
| Brand | Aurum | Rose |
| Build | ESSENTIA Ultegra Di2 / Zipp 404 S | Shave FF Ultegra Di2 |
| Build notes | AURUM's English page lists this build 'from €4,149 (tax excl.)'; the Spanish page shows €5,020.29, i.e. with 21% VAT, which is recorded here. The online configurator says the 2026 ESSENTIA range will be added soon, so no configured totals or other wheel options are priced yet. No power meter. | Colours supersonic grey, silver and bubblegum. Claimed about 7.1 kg (±5 %) in size M, silver, without pedals. MSRP €5,600; Rose showed it reduced to €5,399 in a Black Deals sale on 2 Nov 2026. |
| Price (MSRP) | €5,020€5,020€5,020 | €5,600€5,600€5,600 |
| Bike weight | — | 7.1 kg15.7 lb |
| Weight measured on size | — | M |
| Model year | 2026 | 2026 |
| Generation | — | First generation (2026) |
| Launched | — | 2026-02 |
| Discipline | Aero road | Aero road |
| UCI legal | Not stated | Yes |
| Verdict (out of 100) | ||
| Overall score | 74 | 82 |
| Aero | 72 | 84 |
| Frame | 70 | 84 |
| Components | 76 | 80 |
| Fit | 72 | 80 |
| Practicality | 66 | 68 |
| Price | 87 | 83 |
| Weight | — | 96 |
| Frame & fork | ||
| Frame material | Carbon (AURUM ECT-9 laminate, up to five types of carbon fibre around an EPS core) | Carbon (FF grade; Rose keeps Toray M40X for the FFX) |
| Fork material | Carbon (AURUM ESSENTIA ECT-9), 28.6 mm round steerer, asymmetric legs | Carbon (Shave FF fork) |
| Frame weight | — | 850 g30 oz |
| Fork weight | — | 390 g13.8 oz |
| Weight measured on | — | Frame and fork, size M, as given by bike-x from Rose's launch figures |
| Max system weight | — | 110 kg242.5 lb |
| Frame sizes | 48, 51, 54, 56, 58 | XS, S, M, M/L, L, XL |
| Colours | — | supersonic grey, silver, bubblegum |
| Also available as | — | Shave FFX, the top grade of the same race frame in Toray M40X carbon (795 g claimed, size M) with carbon-spoked wheels; plus the more relaxed endurance Shave |
| UCI frame approval | — | On the UCI list of approved framesets as 'SHAVE FF' with fork 'XLITE FF', sizes XS-XL (6), approved 2 Apr 2025, code ROSE-SHAVE1 (UCI list version 2026.10.02) |
| Compatibility & standards | ||
| Brake type | Hydraulic disc, flat mount | Hydraulic disc |
| Wheel size | 700c | 700c |
| Max tire width | 30 mm | 35 mm |
| Bottom bracket standard | BB386 EVO press-fit | BB86 press-fit |
| Front axle | 12 mm thru-axle (AURUM CNC Stealth, 122 x 12) | 12x100 thru-axle |
| Rear axle | 12 mm thru-axle (AURUM CNC Stealth, 163 x 12) | 12x142 thru-axle |
| Drivetrain compatibility | Electronic groupsets only | Complete builds use Shimano Ultegra Di2 and SRAM Force AXS 2x12 |
| Mechanical shifting possible | No | — |
| Cable routing | Fully internal (AURUM Head Tunnel) | Internal through the cockpit |
| Fit & adjustability | ||
| Cockpit | One-piece AURUM carbon monocoque bar and stem | Fully integrated Rose Shave carbon aero cockpit (Rose doesn't say on its product pages whether bar and stem are one piece) |
| Clip-on aerobars possible | — | Yes |
| Seatpost type | Round carbon 27.2 mm seatpost with an integrated clamp under a rubber cap | Rose aero carbon seatpost (D-shaped), 0 mm offset |
| Fit notes | — | The cockpit has narrow hoods and 13° of flare in the drops, with stock widths of 350-390 mm and stems of 100-120 mm by size; Rose leaves room on it for a computer mount and a time-trial bar. Bikes ship with 20 mm of spacers under the cockpit. |
| Aerodynamics | ||
| Manufacturer aero claims | AURUM lists aerodynamics among the frame's aims but publishes no figures for the ESSENTIA | Rose says the Shave FF is aerodynamically optimised but publishes wind-tunnel figures only for the Shave FFX (205 W at 45 km/h in TOUR's tunnel) |
| Testing method | None published | — |
| Tube profile | NACA truncated aero profiles with a size-specific aero down tube; raised seat stays | — |
| Travel, maintenance & warranty | ||
| Headset bearings | Tapered 1-1/8 in to 1-3/8 in, stainless-steel angular-contact bearings | — |
| Derailleur hanger | — | UDH (SRAM Universal Derailleur Hanger) |
| Proprietary parts | — | Shave cockpit, aero seatpost, optional Shave-specific carbon bottle cages |
| Sold via | Direct online at aurumbikes.com and through AURUM dealers | Direct from Rose (online and Rose stores) |
| Drivetrain | ||
| Groupset | Shimano Ultegra Di2 R8100 | Shimano Ultegra Di2 R8100 |
| Launched | 2021 · current generation | 2021 · current generation |
| Speeds | 12-speed | 12-speed |
| Electronic | Yes | Yes |
| Drivetrain | 2x12 | 2x |
| Shifters | Shimano Ultegra Di2 ST-R8170 | Shimano Ultegra Di2 ST-R8170 |
| Notes | — | Combined shift and hydraulic brake levers |
| Crankset | Shimano Ultegra R8100 | Shimano Ultegra R8100 |
| Chainrings | 52/36 | — |
| Crank lengths available | — | 165 mm (XS-S), 170 mm (M), 172.5 mm (M/L), 175 mm (L-XL) |
| Notes | — | Rose's spec list names both a 50/34 4iiii crankset and a 52/36 FC-R8100; the chainrings fitted aren't clear |
| Power meter | — | 4iiii Ultegra R8100 power meter crank |
| Type | — | Crank arm |
| Notes | — | Rose lists a 4iiii-equipped FC-R8100 crankset and doesn't name the 4iiii model or whether it is dual-sided |
| Bottom bracket | Rotor PF4624 | — |
| Standard | BB386 EVO press-fit | — |
| Front derailleur | Shimano Ultegra Di2 R8150 | Shimano Ultegra Di2 R8150 |
| Rear derailleur | Shimano Ultegra Di2 R8150 | Shimano Ultegra Di2 R8150 |
| Cassette | Shimano Ultegra R8100 | Shimano Ultegra R8101 |
| Range | 11-30 | 11-34 |
| Speeds | 12-speed | 12-speed |
| Chain | Shimano Ultegra | Shimano CN-M8100 |
| Brakes | ||
| Brake calipers | Shimano Ultegra BR-R8170 | Shimano Ultegra BR-R8170 |
| Type | Hydraulic disc | Hydraulic disc |
| Rotors | Shimano Ultegra | — |
| Front rotor | 160 mm | — |
| Rear rotor | 140 mm | — |
| Wheels & tires | ||
| Wheelset | Zipp 404 S | Rose RC55 CX-Ray |
| Front rim depth | — | 55 mm |
| Internal rim width | — | 23 mm |
| Material | Carbon | Carbon |
| Spokes | — | CX-Ray |
| Weight | — | 1,360 g3 lb |
| Notes | — | Rose gives a 55 mm front rim and a narrower rear rim, 1,360 g for the pair, 23 mm internal width |
| Tires | Vittoria Corsa N.EXT TLR | Schwalbe Pro One Aero |
| Tire width | 28 mm | 28 mm |
| Notes | — | Pro One Aero Front Evo (front) and Pro One Rear Evo (rear), Super Race casing, RaceGuard |
| Cockpit | ||
| Handlebar | AURUM Integrated Handlebar | Rose Shave Cockpit |
| Type | One-piece carbon monocoque bar and stem | Integrated carbon aero cockpit |
| Integrated stem | Yes | — |
| Widths available | — | 350 mm (XS-S), 370 mm (M-M/L), 390 mm (L-XL); stem 100-120 mm by size |
| Flare | — | 13° |
| Cable routing | — | Internal |
| Material | Carbon | Carbon |
| Saddle & seatpost | ||
| Saddle | Prologo Scratch M5 Pass Tirox | Selle Italia SLR Superflow S3 |
| Seatpost | AURUM Round carbon 27.2 mm | Rose Shave aero carbon seatpost |
| Offset / setback | — | 0 mm |
| Material | Carbon | Carbon |
| Bar tape | AURUM Experience | Rose Gel-Comfort |
| Thickness | 3 mm | — |
| Included extras | ||
| Pedals | — | None included |
| Bottle cages | AURUM Carbon | — |
| Geometry (smallest – largest size) | ||
| Sizes | 48, 51, 54, 56, 58 | XS, S, M, M/L, L, XL |
| Rider height min | 152–180 cm5′0″–5′11″ | 155–191 cm5′1″–6′3″ |
| Rider height max | 163–188 cm5′4″–6′2″ | 166–200 cm5′5″–6′7″ |
| Stack | 505–592 mm19.9–23.3″ | 515–616 mm20.3–24.3″ |
| Reach | 371–401 mm14.6–15.8″ | 375–430 mm14.8–16.9″ |
| Seat tube angle | 73.3–75° | 73.5–75.5° |
| Head tube angle | 71.8–73.2° | 71.5–73.8° |
| Head tube length | 103–189 mm4.1–7.4″ | 110–205 mm4.3–8.1″ |
| Effective top tube | 506–579 mm19.9–22.8″ | 508–612 mm20–24.1″ |
| Seat tube length | 435–549 mm17.1–21.6″ | 435–575 mm17.1–22.6″ |
| Chainstay | 408–410 mm16.1–16.1″ | 410 mm16.1″ |
| Wheelbase | 967–1,008 mm38.1–39.7″ | 969–1,038 mm38.1–40.9″ |
| BB drop | 71–74 mm2.8–2.9″ | 72 mm2.8″ |
| Fork length | 370 mm14.6″ | 370 mm14.6″ |
| Fork offset | 44–50 mm1.7–2″ | 44 mm1.7″ |
| Trail | 58–60 mm2.3–2.4″ | 55–66 mm2.2–2.6″ |
| Front centre | 570–608 mm22.4–23.9″ | — |
| Standover | 721–826 mm28.4–32.5″ | 735–854 mm28.9–33.6″ |
| Saddle height max | — | 690–890 mm27.2–35″ |
| Wheel size | 700c | 700c |
| Crank length | — | 165–175 mm6.5–6.9″ |
| Stem length | — | 100–120 mm3.9–4.7″ |
| Handlebar width | — | 350–390 mm13.8–15.4″ |
| Handlebar reach | 80 mm3.1″ | — |
| Handlebar drop | 125 mm4.9″ | — |
Geometry overlay
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Drawn to scale (how to read it).