Compare
Aurum Magma vs Rose Shave FFX
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 Rose Shave FFX starts €299 cheaper (€8,000 vs €8,299 for the Aurum Magma).
- Our verdict scores the Rose Shave FFX higher overall: 81/100 vs 78/100.
- The Aurum Magma comes in 5 sizes, the Rose Shave FFX in 6.
Aurum Magma
Rose Shave FFX
| AurumMagma | RoseShave FFX | |
|---|---|---|
| Overview | ||
| Brand | Aurum | Rose |
| Build | Magma Ultegra Di2 / Scope R-series | Shave FFX Dura Ace Di2 |
| Build notes | AURUM lists the Ultegra parts by group name only, without model codes. No power meter. EUR price as AURUM's online configurator totals it (Spain selected), in any of the four standard colours; the KALEIDOS custom paint adds €550 and a second bottle and cage €47. | Colours ghost pearl and liquid racing green. Rose quotes about 6.6 kg (±5 %) for the Shave FFX in size M, liquid racing green, without pedals, on its product pages, but 'from 6.8 kg' on the model page, so no build weight is recorded. Rose's UK site doesn't list the Shave FFX, so there is no GBP price. The 4iiii power meter's model isn't named beyond being dual-sided. |
| Price (MSRP) | €8,299€8,299€8,299 | €8,000€8,000€8,000 |
| Model year | 2026 | 2026 |
| Generation | Magma V2 (2nd generation) | First generation (2026) |
| Launched | 2024-05 | 2026-02 |
| Discipline | Aero road | Aero road |
| UCI legal | Yes | Yes |
| Verdict (out of 100) | ||
| Overall score | 78 | 81 |
| Aero | 80 | 86 |
| Frame | 88 | 92 |
| Components | 82 | 90 |
| Fit | 84 | 80 |
| Practicality | 68 | 68 |
| Price | 65 | 67 |
| Frame & fork | ||
| Frame material | Carbon (AURUM ECT-10 laminate: six types of carbon fibre with a size-specific layup) | Carbon (Toray M40X layup, FFX grade) |
| Fork material | Carbon (AURUM ECT-10, wide-stance crown, standard 28.6 mm steerer) | Carbon (Shave FFX fork) |
| Frame weight | 780 g27.5 oz | 795 g28 oz |
| Fork weight | 375 g13.2 oz | — |
| Weight measured on | AURUM claim, size 54 (Cyclingnews quotes it as unpainted) | Frame, size M, liquid racing green, as claimed by Rose (±30 g) |
| Max system weight | — | 110 kg242.5 lb |
| Frame sizes | 48, 51, 54, 56, 58 | XS, S, M, M/L, L, XL |
| Colours | Carbon Gloss, Red Team, Arctic White, Tenerife (complete bikes); KALEIDOS custom paint | ghost pearl, liquid racing green |
| Also available as | Magma Tenerife limited edition; the cheaper ESSENTIA in ECT-9 carbon with the same geometry | Shave FF, the lower carbon grade of the same race frame (850 g claimed in size M per bike-x): Ultegra Di2 €5,600, Force AXS €5,900; plus the more relaxed endurance Shave |
| UCI frame approval | Approved 15 Feb 2024 as 'MAGMA V2' (frame and fork), sizes 48 - 58 (6), code AURUM-MG (UCI list version 2026.10.02); AURUM also states it is UCI approved | On the UCI list of approved framesets as 'SHAVE FFX' with fork 'XLITE FFX', sizes XS-XL (6), approved 25 Sep 2025, code ROSE-SHAVEX (UCI list version 2026.10.02) |
| Compatibility & standards | ||
| Brake type | Hydraulic disc, flat mount only | Hydraulic disc |
| Wheel size | 700c | 700c |
| Max tire width | 35 mm | 35 mm |
| Bottom bracket standard | T47 threaded | BB86 press-fit |
| Front axle | 12 mm thru-axle (AURUM CNC 'stealth' ultralight) | 12x100 thru-axle |
| Rear axle | 12 mm thru-axle (AURUM CNC 'stealth' ultralight) | 12x142 thru-axle |
| Drivetrain compatibility | Electronic groupsets only | Complete builds use Shimano Dura-Ace Di2 and SRAM Red AXS 2x12 |
| Mechanical shifting possible | No | — |
| Cable routing | Fully internal through the AURUM integrated handlebar | Internal through the cockpit |
| Fit & adjustability | ||
| Cockpit | One-piece AURUM Integrated Handlebar (carbon monocoque) with hidden cable routing, in 15 sizes (38/40/42 cm widths, 90-130 mm stems) | 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 | AURUM MAGMA aero carbon seatpost with hidden wedge clamp, 0 or 20 mm setback | Rose aero carbon seatpost (D-shaped), 0 mm offset |
| Fit notes | The bar width (38/40/42 cm), stem length (90-130 mm), crank length and seatpost setback are chosen in the configurator. The bar comes with 5 and 10 mm stack spacers. The two smallest sizes have shorter seat tubes and the fork offset is 50 mm on sizes 48-51 and 44 mm on 54-58. | 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 | About 7 W saved at 45 km/h by the new frameset against the original Magma with the same size, wheels and parts, plus about 10 W from the integrated handlebar against a standard two-piece round bar and stem (AURUM CFD estimates) | 205 W at 45 km/h in TOUR's wind tunnel (size M/L with RC55 wheels and 28 mm Schwalbe Pro One Aero), 10 W less than the Rose Xlite 06 (215 W) — figures Rose quotes for the Shave FFX |
| Testing method | CFD across -10 to 10 degrees of yaw during design; Cyclingnews reports the design was then checked in the University of Valencia wind tunnel | TOUR wind tunnel test at 45 km/h |
| Tube profile | NACA 0024 profile for the head and down tubes, NACA 0021 for the fork, seat tube and seatpost, truncated trailing edges; high seat stays and a flattened top tube | — |
| Travel, maintenance & warranty | ||
| Headset bearings | Tapered, angular stainless-steel bearings 1.5 in lower and 1-3/8 in upper | — |
| Derailleur hanger | UDH (SRAM Universal Derailleur Hanger) | UDH (SRAM Universal Derailleur Hanger) |
| Proprietary parts | AURUM integrated handlebar, MAGMA seatpost and hidden wedge clamp, AURUM thru-axles | Shave cockpit, aero seatpost, optional Shave-specific carbon bottle cages |
| Frame warranty | 2 years on frame and fork, extended to lifetime when the frame serial number is registered on AURUM's website | — |
| Sold via | Direct online at aurumbikes.com and through AURUM dealers | Direct from Rose (online and Rose stores) |
| Drivetrain | ||
| Groupset | Shimano Ultegra Di2 | Shimano Dura-Ace Di2 R9200 |
| Launched | — | 2021 · current generation |
| Speeds | 12-speed | 12-speed |
| Electronic | Yes | Yes |
| Drivetrain | 2x | 2x |
| Shifters | Shimano Ultegra Di2 | Shimano Dura-Ace Di2 ST-R9270 |
| Notes | — | Combined shift and hydraulic brake levers |
| Crankset | Shimano Ultegra Di2 | Shimano Dura-Ace R9200 |
| Chainrings | 52/36 | 52/36 |
| Crank lengths available | — | 165 mm (XS-S), 170 mm (M), 172.5 mm (M/L), 175 mm (L-XL) |
| Power meter | — | 4iiii Precision (dual-sided) |
| Measurement | — | Dual-sided |
| Bottom bracket | CeramicSpeed T47 | — |
| Standard | T47 | — |
| Front derailleur | Shimano Ultegra Di2 | Shimano Dura-Ace Di2 R9250 |
| Rear derailleur | Shimano Ultegra Di2 | Shimano Dura-Ace Di2 R9250 |
| Cassette | Shimano Ultegra Di2 | Shimano Dura-Ace R9200 |
| Range | 11-30 | 11-34 |
| Speeds | 12-speed | 12-speed |
| Chain | Shimano Ultegra | Shimano CN-M9100 |
| Brakes | ||
| Brake calipers | Shimano Ultegra Di2 hydraulic disc | Shimano Dura-Ace BR-R9270 |
| Type | Hydraulic disc | Hydraulic disc |
| Rotors | Shimano Ultegra | — |
| Front rotor | 160 mm | — |
| Rear rotor | 140 mm | — |
| Wheels & tires | ||
| Wheelset | Scope R-series 4 / 6 | Rose RC55CS VONOA |
| Front rim depth | — | 55 mm |
| Rear rim depth | — | 55 mm |
| Internal rim width | — | 23 mm |
| Material | Carbon | Carbon |
| Spokes | — | VONOA carbon spokes |
| Weight | — | 1,280 g2.82 lb |
| Notes | Choice of Scope R4 or R6 in the configurator | Rose says the front rim is wider and the rear narrower; 1,280 g claimed for the pair. The Shave FFX is the only Shave with carbon spokes. |
| Tires | Vittoria Corsa Pro | Schwalbe Pro One Aero |
| Tire width | 28 mm | 28 mm |
| Notes | Tubeless ready | 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 | 380, 400 or 420 mm at the hoods (395/415/435 mm at the drops) with 90-130 mm stems, chosen in the configurator | 350 mm (XS-S), 370 mm (M-M/L), 390 mm (L-XL); stem 100-120 mm by size |
| Bar reach | 80 mm | — |
| Bar drop | 125 mm | — |
| Flare | 4° | 13° |
| Cable routing | Fully internal | Internal |
| Material | Carbon | Carbon |
| Weight | 330 g11.6 oz | — |
| Notes | 330 g for 400x110 mm including mounting hardware (AURUM's handlebar page); the Magma page quotes 320 g. Removable CNC mount for Garmin, Wahoo and GoPro. | — |
| Saddle & seatpost | ||
| Saddle | Prologo Scratch M5 Nack | Selle Italia SLR Superflow S3 |
| Seatpost | AURUM MAGMA Carbon | Rose Shave aero carbon seatpost |
| Offset / setback | 0 or 20 mm | 0 mm |
| Material | Carbon | Carbon |
| Weight | 170 g6 oz | — |
| Bar tape | AURUM Experience | Rose Gel-Comfort |
| Thickness | 3 mm | — |
| Included extras | ||
| Pedals | — | None included |
| 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
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).