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ENVE Melee vs Factor OSTRO VAM
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 Factor OSTRO VAM starts €2,800 cheaper (€11,399 vs €14,199 for the ENVE Melee).
- Our verdict scores the ENVE Melee higher overall: 79/100 vs 77/100.
- Tire clearance: up to 33 mm on the ENVE Melee vs 32 mm on the Factor OSTRO VAM.
ENVE Melee
Factor OSTRO VAM
| ENVEMelee | FactorOSTRO VAM | |
|---|---|---|
| Overview | ||
| Brand | ENVE | Factor |
| Build | Melee V2 PRO RED | OSTRO VAM SRAM Red w/ Power Meter |
| Build notes | ENVE's configurator build: wheels, crank length, chainrings, tyre width, cockpit size, saddle width and colours are chosen at order. The claimed weight is ENVE's ride-ready figure for a 54 cm Red AXS 2x power-meter build with SES 4.5 PRO wheels, weighed with Dura-Ace pedals, tyre sealant and bar tape (56 cm: 6.82 kg; 58 cm with 1x: 6.75 kg). EUR price from ENVE's EU store, which listed the build as sold out on 2026-10-06. UK prices quoted by the press (BikeRadar £13,199) aren't on an ENVE UK store. | Barstem width and stem length, crank length, seatpost setback, frame colour and wheel decal colour are chosen at order. Prisma custom paint costs USD 600 extra. |
| Price (MSRP) | €15,199$13,950€15,199 | €13,699$12,599€13,699 |
| Bike weight | 6.65 kg14.7 lb | — |
| Weight measured on size | 54 | — |
| Model year | 2026 | 2024 |
| Generation | Second generation (Melee v2) | 2nd generation |
| Launched | 2026-09 | 2024-02 |
| Discipline | Aero road | Aero road |
| UCI legal | Not stated | Not stated |
| Verdict (out of 100) | ||
| Overall score | 79 | 77 |
| Aero | 88 | 84 |
| Frame | 93 | 92 |
| Components | 93 | 90 |
| Fit | 86 | 86 |
| Practicality | 68 | 66 |
| Price | 25 | 44 |
| Weight | 100 | — |
| Frame & fork | ||
| Frame material | Carbon (ENVE M.O.D. Carbon) | Carbon (TeXtreme, Toray and Nippon Graphite pitch-based fibre) |
| Fork material | Carbon (ENVE M.O.D. Carbon) | Carbon; OSTRO wide-stance fork |
| Frame weight | 791 g27.9 oz | 820 g28.9 oz |
| Frameset weight | 1,442 g3.18 lb | — |
| Weight measured on | Size 56, UL Black finish (ENVE press kit): frame only 791 g; frame, fork, headset, seatpost, thru-axles and derailleur hangers 1,442 g | Size 54, painted (Factor launch press release); Factor's current spec sheet lists 900 g |
| Max system weight | 136 kg299.8 lb | — |
| Frame sizes | 47, 50, 52, 54, 56, 58, 60 | 45, 49, 52, 54, 56, 58, 61 |
| Colours | UL Black, White Lightning | Icon Blue, Geometric, White Chrome, Gloss Chrome, Black, Arctic Chrome, Terracotta Orange; custom Prisma paint at extra cost |
| Compatibility & standards | ||
| Brake type | Hydraulic disc, flat mount | Disc, max rotor 160 mm front and rear |
| Max rotor size | 160 mm | 160 mm |
| Wheel size | — | 700c |
| Max tire width | 33 mm | 32 mm |
| Bottom bracket standard | BSA threaded (68 mm) | T47A (CeramicSpeed T47A aluminium cups; bearings for DUB, 24 mm or Ultra-Torque spindles) |
| Front axle | 12 x 100 mm thru-axle | 12x100 thru-axle |
| Rear axle | 12 x 142 mm thru-axle | 12x142 thru-axle |
| Drivetrain compatibility | — | Electronic only, max chainring 54T |
| Mechanical shifting possible | Yes | No |
| Max chainring | — | 54T |
| Front derailleur mount | Bolt-on braze-on mount | — |
| Cable routing | Fully internal through the ENVE IN-Route headset system; mechanical groupsets compatible | Internal |
| Electronic battery location | — | Inside the seat tube, fitted from behind the bottom bracket (no need to remove the seatpost) |
| Hydration & storage | ||
| Bottle mounts | — | 2 |
| Bottle mount locations | — | Down tube and seat tube, with location-specific Black Inc aero bottle cages included |
| Fit & adjustability | ||
| Cockpit | One-piece carbon bar and stem (ENVE SES Aero V2 or SES AR One-Piece) on the complete builds; ENVE recommends its IN-Route bars and stems | One-piece bar and stem (Black Inc Integrated Aero Barstem) |
| Seatpost type | Proprietary Melee v2 aero carbon seatpost, zero offset, two-bolt clamp, wedge seat clamp | OSTRO VAM aero seatpost, 15 mm wide, 0 or 20 mm setback; pusher-type clamp at the back of the seat tube |
| Fit notes | 7 sizes. The SES Aero V2 one-piece cockpit comes in 18 sizes (37/40 to 41/44 cm wide, 90-140 mm stems). Compared with the first Melee, sizes 56-60 have 11 mm less stack (5 mm in the frame, 6 mm in the bar), and five fork rakes are spread across the seven sizes. The top cap adds 4.5 mm of stack. | The barstem is chosen at order in 36, 38, 40 or 42 cm widths and 80 to 140 mm stem lengths (10 mm steps), with 80 mm reach and 120 mm drop; the drops flare by 30 mm. Factor also offers the Integrated Aero Barstem with Extensions (AB03) as an upgrade. Saddle rail clamps take 7x7 and 7x9 rails. A 45 cm size was added and the seat-tube angle is 0.5° steeper than before. |
| Aerodynamics | ||
| Manufacturer aero claims | 17 W faster than the first Melee at 50 km/h with rider, bottles and cages: frame, fork and seatpost -11.4 W, SES Aero V2 bar and aero tape -3 W, SES aero bottle cages -2.6 W. Frame surface area cut by 7.5%. | 70 g less drag (a 7 W saving) than the previous OSTRO VAM frame; Factor says it outperforms its rivals in the wind tunnel |
| Testing method | Wind tunnel (Mercedes-AMG Petronas, Silverstone) with a real rider on board, bottles and cages fitted, developed with Simon Smart | CFD simulations of dozens of head tube profiles (Rapid Iterative Design), then rapid prototypes verified in the wind tunnel and real-world testing |
| Tube profile | — | Airfoil-type profile along the frame's waterline; 15 mm wide seatpost shaped for the airflow off the rider's legs |
| Travel, maintenance & warranty | ||
| Headset bearings | ENVE IN-Route, 40.5 x 49.5 x 6.5 mm 45/45 upper and lower bearings, alloy compression ring | 1-1/8 in upper and 1-3/8 in lower bearings |
| Derailleur hanger | UDH (SRAM Universal Derailleur Hanger) | — |
| Maintenance | — | The threaded T47 bottom bracket takes CeramicSpeed bearings. The Di2 battery is reached from behind the bottom bracket rather than through the seatpost, so the saddle height isn't disturbed. |
| Proprietary parts | Aero seatpost; IN-Route headset and cable routing | One-piece Black Inc barstem, OSTRO VAM seatpost and clamp, location-specific bottle cages |
| Frame warranty | ENVE Limited Lifetime Warranty for the original owner (from manufacture date for second owners), plus a separate lifetime crash replacement programme | Limited lifetime warranty |
| Sold via | Direct from ENVE online (US and EU stores) and through dealers | Direct from factorbikes.com and through retailers |
| Drivetrain | ||
| Groupset | SRAM Red AXS E1 | SRAM Red eTap AXS |
| Launched | 2024 · current generation | 2019 · replaced by SRAM Red AXS E1 (2024) |
| Speeds | 12-speed | 12-speed |
| Electronic | Yes | Yes |
| Wireless | Yes | Yes |
| Drivetrain | 2x | 2x |
| Shifters | SRAM Red AXS E1 | — |
| Notes | Combined shift and hydraulic brake levers | — |
| Crankset | SRAM Red AXS E1 Power Meter | SRAM Red AXS Power Meter |
| Chainrings | 46/33 or 48/35 (chosen at order) | 48/35 |
| Crank length | — | 165 / 170 / 172.5 (chosen at order) |
| Crank lengths available | 165, 170, 172.5 or 175 mm (chosen at order) | — |
| Power meter | SRAM Red AXS E1 Power Meter | SRAM Red AXS Power Meter |
| Launched | 2024 · current generation | — |
| Type | Integrated in crankset | — |
| Front derailleur | SRAM Red AXS E1 | — |
| Rear derailleur | SRAM Red AXS E1 | — |
| Cassette | — | SRAM Red AXS |
| Range | — | 10-33 |
| Speeds | — | 12-speed |
| Brakes | ||
| Rotors | — | 160 mm rotors |
| Front rotor | — | 160 mm |
| Rear rotor | — | 160 mm |
| Wheels & tires | ||
| Wheelset | ENVE SES 4.5 PRO | Black Inc 48|58 |
| Front rim depth | — | 48 mm |
| Rear rim depth | — | 58 mm |
| Internal rim width | — | 23 mm |
| Material | Carbon | Carbon rims, carbon spokes |
| Rim bead | — | Mini hook |
| Notes | SES 6.7 PRO can be chosen instead; freehub HG, XDR or N3W | Black or silver decals, chosen at order |
| Tires | ENVE SES Road Tire | — |
| Widths available | 25, 27, 29, 31 or 33 mm, tan or black sidewall (chosen at order) | — |
| Cockpit | ||
| Handlebar | ENVE SES Aero V2 One-Piece Handlebar | Black Inc Integrated Aero Barstem |
| Type | One-piece carbon bar and stem | One-piece bar and stem |
| Integrated stem | Yes | Yes |
| Widths available | 37/40, 39/42 or 41/44 cm (hoods/drops) with 90-140 mm stems (18 sizes, chosen at order) | 36, 38, 40, 42 cm |
| Bar reach | 76 mm | 80 mm |
| Bar drop | 128 mm | 120 mm |
| Material | Carbon | — |
| Notes | Airfoil-shaped drops with optional shaped pads; computer mount included. Claimed 335-355 g depending on size. The SES AR One-Piece Handlebar can be chosen instead. | Stem length 80-140 mm in 10 mm steps, chosen at order; drops flare by 30 mm |
| Headset | ENVE IN-Route | — |
| Saddle & seatpost | ||
| Saddle | Selle Italia SLR Elite | — |
| Widths available | 130 or 145 mm | — |
| Notes | ENVE x Selle Italia co-branded version | — |
| Seatpost | ENVE Melee v2 Aero Seatpost | Factor OSTRO VAM Seatpost |
| Offset / setback | 0 mm | 0 mm or 20 mm setback, 350 mm long |
| Material | Carbon | Carbon |
| Notes | Proprietary; two-bolt saddle clamp | — |
| Bar tape | ENVE Handlebar Tape | — |
| Notes | Grey, black or white | — |
| Included extras | ||
| Bottle cages | ENVE SES Aero Carbon Bottle Cage | Black Inc Aero Integrated Bottle Cages |
| Notes | Two cages, black or white, down tube or seat tube style | — |
| Geometry (smallest – largest size) | ||
| Sizes | 47, 50, 52, 54, 56, 58, 60 | 45, 49, 52, 54, 56, 58, 61 |
| Stack | 501.7–610.4 mm19.8–24″ | 502–611 mm19.8–24.1″ |
| Reach | 367.6–407.5 mm14.5–16″ | 360–409 mm14.2–16.1″ |
| Seat tube angle | 72.8–75° | 73.5–75.5° |
| Head tube angle | 70.8–73.8° | 71.1–73.3° |
| Head tube length | 97.5–197.5 mm3.8–7.8″ | — |
| Effective top tube | 502.1–597.1 mm19.8–23.5″ | — |
| Seat tube length | 421.4–554.2 mm16.6–21.8″ | 432–554 mm17–21.8″ |
| Chainstay | 410–412 mm16.1–16.2″ | 405–410 mm15.9–16.1″ |
| Wheelbase | 977.6–1,010.7 mm38.5–39.8″ | 969–1,022 mm38.1–40.2″ |
| BB drop | 71–75 mm2.8–3″ | 70–72 mm2.8–2.8″ |
| BB height | 267.4–271.4 mm10.5–10.7″ | — |
| Fork offset | 39–55 mm1.5–2.2″ | 43–57 mm1.7–2.2″ |
| Trail | — | 58–58.6 mm2.3–2.3″ |
| Front centre | 579.3–609 mm22.8–24″ | — |
| Standover | 717.7–839.4 mm28.3–33″ | 726–840 mm28.6–33.1″ |
| Saddle height max | 746.4–879.2 mm29.4–34.6″ | — |
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).