XMCS VRT
Frame

XMCS VRT

Weight930g
Year2026
CategoryFrame

Colourways10

The XMCS VRT (formerly AERYS:VRT) is an aero road frameset from a small Chinese direct-sale brand that delivers wind-tunnel performance close to a Cervélo S5 at a fraction of the price, with painted frame weights around 930–1,015 g and complete builds in the 6.5–7.5 kg range. Owners and reviewers consistently praise its stiffness, balanced ride quality and build finish, but flag a steep 74° seat tube that forces a forward position, crosswind sensitivity from the deep front end, long and sometimes chaotic delivery times, and a few fitment quirks. It was not yet UCI-approved as of late 2026, and the full wind-tunnel report remains private.

Pros

  • Aero performance on par with Cervélo S5 and ahead of QuickPro ER:One in Silverstone tunnel testing, including rider-inclusive runs123
  • Light for an aero frame: painted frames 930–1,015 g, complete builds 7.29–7.45 kg245
  • Stiff, responsive and agile ride with strong bottom bracket stiffness for sprints, yet smooth and comfortable over long rides145
  • Excellent build quality: clean BB threads, aligned brake mounts, no facing needed, premium paint and decals426
  • Competitive price: roughly $1,650–2,000 for frameset with integrated bar and custom paint, or just under €5,000 for a complete build315
  • 35 mm official tyre clearance, fitting up to about 38 mm measured on 1x setups427
  • Standard FSA ACR headset, T47 bottom bracket, UDH hanger and standard thru-axles simplify sourcing and setup237
  • Custom paint and logo options, including a clean logo-free raw carbon finish256
  • Sharp, precise steering and composed descending inspire confidence in corners521
  • XMCS stood behind an order paid to a scammer who hijacked a sales rep's WhatsApp account2

Cons

  • Steep 74° seat tube and limited seatpost setback push riders forward; those needing setback must use the offset post, and small riders may need to cut the post421
  • Deep head tube and fork make the bike sensitive in crosswinds, especially with 65 mm wheels243
  • Long and sometimes delayed delivery: 45–50 days typical, one order took nearly three months due to missed flights45
  • Not UCI-approved as of early October 2026, ruling out UCI-sanctioned racing23
  • Fitment quirks: Ultegra rear derailleur would not direct-mount on the UDH hanger, Ahyka seat-tube cages clash with the frame, and a resin spike was found in the lower bearing seat4
  • No instructions included, and the computer mount is proprietary, sold separately and lacks a Garmin/Wahoo insert4
  • Large sizes have high stack (about 615 mm) and short reach, criticised by tall riders wanting a long, low position4
  • Full wind tunnel report is not public, only summarised by selected reviewers, and tests were run without bottles23

Key Facts

  • Painted frame weights measured by owners: 962 g (size L, no hangers), 980–1,010 g (S/M), 994 g (L), 1,015 g (L); claimed 885 g (M) / 925 g (L)2435
  • Complete builds weighed 7.29 kg (SRAM Force AXS, size L, ready to ride) and 7.35–7.45 kg (Ultegra Di2, with pedals and cages); Eurobike demo bike 6.48 kg without pedals542
  • Official tyre clearance 35 mm; owners fit 30–32 mm tyres measuring 34–35 mm, and up to about 38 mm measured on 1x setups427
  • Threaded T47 bottom bracket (T47-85.5), UDH hanger, FSA ACR headset, standard thru-axles, 2-bolt saddle clamp, Di2 battery mount inside the seatpost324
  • Seat tube angle 74° with 0 mm and 15 mm offset seatpost options; effective angle feels steeper than stated, pushing riders forward421
  • Wind tunnel (Silverstone) results: within 0.7 W of Cervélo S5 bike-only, faster than QuickPro ER:One, and lowest rider-inclusive drag among tested bikes with XMCS wheels (CdA 0.3313); forum member measured CdA 0.281 hoods / 0.239 full aero132
  • Frame material: Toray T1000, 40T and 30T carbon with Mitsubishi SCM; system weight limit 115 kg3
  • Prices paid: $1,650 frameset (blog), $1,700 frame/fork/seatpost or $1,900 with bar and custom paint, $1,800–1,900 with integrated bar and one custom colour, $1,900–2,000 for frame/cockpit/custom paint3721
  • Delivery times: about 45–50 days to Europe (autumn 2026); one order placed 7 August arrived 4 November after missed flights and transport delays45
  • Not UCI-approved as of early October 2026; XMCS says documents were submitted2

Reviews & Ratings

AP
10:04
XMCS VRT Aero Bike Quick Overview

The reviewer, Al, discusses his XMCS aero bike frame, highlighting its design, build quality, and initial ride impressions. He notes that the frame offers appealing features like a deep head tube, straight down tube, and the ability to run wider tires, but mentions some packaging issues and a minor imperfection in the head tube. Overall, he is impressed with the frame's stiffness, acceleration, and speed, and appreciates the option for a raw, logo-free finish.

September 05, 2026Watch on YouTube
NERO Cycling
01:34:28
Why This $1,700 Chinese Frame Is A Threat To Specialized | NERO Show

The reviewer discusses the XMCS VRT frame and wheels, noting that the wheels have a problematic spoke lacing pattern (radial lacing on the rear disc side) which is known to put more pressure on spokes, leading to a spoke breaking within a month. The reviewer lost confidence in the wheels and cannot recommend them, suggesting they should be avoided. The frame is described as having a slender head tube, T47 bottom bracket, UDH, and tire clearance up to 34mm measured (likely fitting 38mm measured tires). The frame is priced around $1,700 USD for frame, fork, and seatpost, or $1,900 with handlebars and custom paint option.

June 30, 2026Watch on YouTube
Patrick Lino2 videos
27:19
FASTER Than Cervelo S5 & Quick Pro - XM CarbonSpeed VRT

The reviewer discusses the XMCS AERYS:VRT (unreleased), now renamed XM Carbon Speed VRT or XMS VRT, a frame set from XM Carbon Speed. They highlight its price ($1,900-$2,000 USD), wind tunnel results showing it outperforms the QuickPro ER1 and is comparable to the Cervelo S5, especially with rider-inclusive testing where it achieved the lowest drag. The reviewer notes excellent build quality, fit and finish, and recommends the frame after 1,000 miles, but cautions about geometry fit due to a steep seat tube angle (74°) and limited seatpost setback.

June 25, 2026Watch on YouTube
14:54
XM Carbon Speed VRT Summer Update - A MUST Buy

The reviewer discusses the XM Carbon Speed VRT frameset, which he received from Peter at Carbon Speed. He initially struggled with the fit, finding it too short even with a 140mm stem, but after rethinking his bike fit philosophy—moving the saddle forward 1.5–2cm, moving cleats back, and lowering the saddle 5–6mm—he achieved a comfortable and efficient position. He praises the bike's performance, comparing it favorably to his Tarmac SL8 Pro, noting its balanced smoothness, responsiveness, and bottom bracket stiffness. He considers it his main bike and plans to downsize his collection. The frameset costs about $1,900 with paint and integrated cockpit, and weighs under 1000g for an aero bike.

August 27, 2026Watch on YouTube
r/ChineseCarbon4 days ago
first impressions xmcs vrt

A Reddit user in Austria posted a detailed first-impressions review of a custom-built bike using the XMCS VRT frameset, XMCS 50mm wheels, and SRAM Force AXS groupset, purchased at full price directly from XMCS. The build weighed 7.29 kg ready to ride and cost just under €5,000. The reviewer reported a smooth import process with taxes and customs included, and praised the bike's stiffness, responsiveness, cornering, and climbing performance, while noting the frame catches crosswinds but remains predictable. Commenters responded positively, with some expressing interest in the frame and others discussing geometry preferences.

AI Summary

Pros

  • Stiff and responsive ride without being uncomfortable
  • Composed and direct under hard sprint efforts (~1,400 W)
  • Sharp, precise steering that inspires confidence in corners

more pros in the review

Cons

  • Frame and handlebar shipping delayed (ordered Aug 7, frame complete Sep 23, arrived Nov 4) due to missed flights and transport issues
  • Bike catches wind in gusty crosswinds, though amount attributable to frame vs. wheels is unclear
  • Custom/unusual handlebar configuration (400mm riser bar with 90mm stem) extended production time

more cons in the review

Key Points

  • Frame: XMCS VRT, size L, colour YS3073, weight 1,015 g
  • Cockpit: XMCS riser bar, 400 mm wide, 90 mm stem, weight 305.7 g
  • Wheels: XMCS 50 mm deep, 26 mm internal / 33 mm external width, 1,230 g per pair

more key points in the review

Cyclists Hub | Petr Minarik
XMCS Vortex (VRT): Aero Frame Backed by Data - Cyclists Hub

The XMCS Vortex (VRT) is an aero frame from a small Chinese brand that has been wind tunnel tested at Silverstone, with published data showing it is competitive with the Cervélo S5. The reviewer notes that while the numbers are impressive, the frame has fit limitations and crosswind sensitivity. It is priced at around $1,650 for the frameset.

July 21, 2026Read full review
XMCS: frames, handlebars, cranks, etc (anything other than wheels)

The XMCS VRT is an aero road frameset (originally developed under the AERYS name) with an internal longitudinal rib in the down, top and seat tubes, FSA ACR headset, 35 mm official tyre clearance and a frameset-plus-bar price around $2,000. XMCS's Silverstone wind tunnel test put it ahead of the QuickPro ER:One and level with or slightly ahead of a Cervélo S5 with rider. Customer frames arrived in October 2026, about 45-50 days after ordering: painted frames weigh 980-1010 g, the integrated bar with titanium mount 360 g, the seatpost about 160 g, and complete Ultegra Di2 builds 7.35-7.45 kg. Owners racing it report a fast, stiff, lively and agile bike that wins races and lets them hold an aero position longer, a little less compliant than a SuperSix Evo; 30-32 mm tyres at about 3.6 bar take the edge off. Build quality is good (clean BB threads, aligned brake mounts, intuitive routing). Points to watch: the effective seat tube angle feels steeper than the stated 74°, so riders used to setback needed the offset seatpost; the deep head tube and fork catch crosswinds; one owner's Ultegra rear derailleur would not direct-mount on the UDH hanger; the seat-tube bottle cage position clashes with Ahyka aero cages; there are no instructions, and the riser bar's top cap has a sharp protruding edge. Taller riders criticise the high stack (about 615 mm) and short reach in large sizes, and the gap above 28 mm tyres looks large to some.

AI Summary

Pros

  • Fast: tested ahead of the QuickPro ER:One and close to the Cervélo S5 with rider, and owners race and win on it
  • Stiff, lively and agile with spot-on geometry for a mid-size racer; easier to hold an aero position than a Scott Foil for one owner
  • Light for an aero frame: 980-1010 g painted, builds 7.35-7.45 kg

more pros in the review

Cons

  • Effective seat tube angle feels steeper than the stated 74°; riders used to setback needed the offset seatpost
  • Deep head tube and fork get pushed around in crosswinds
  • Large sizes have high stack (about 615 mm) and short reach for tall riders who want a long, low fit

more cons in the review

Key Points

  • Frame weight 980-1010 g painted (S/M); bar with Ti mount 360 g; seatpost about 160 g
  • Complete Ultegra Di2 builds 7.35-7.45 kg with pedals and cages
  • Official tyre clearance 35 mm

more key points in the review

XMCS: 2026 Aero and Allround road frames

The XMCS VRT (launched as AERYS:VRT) is an aero road frameset with 35 mm tyre clearance (up to about 38 mm measured), an FSA ACR headset, a 2-bolt saddle clamp, 0/15 mm offset seatposts and a Di2 battery mount in the seatpost. It costs $1800-1900 with integrated bar and one custom colour. A painted size L frame weighs 962 g without hangers, the fork 439-470 g and the seatpost 167-192 g; the Eurobike demo bike was 6.48 kg. XMCS's Silverstone tunnel test put it level with the Cervélo S5 and Quick Pro ER:One (slightly ahead of the S5 with rider in some setups), and a forum member measured a CdA of 0.281 on the hoods. The full report stays private. Owners after 180 km rides and 3,500 km describe a refined, balanced ride closer to a Tarmac SL8 than to a harsh aero bike, fast and responsive with precise steering and a very stiff bar, and praise frame quality (no facing needed, perfect BB threads, premium paint). The front end makes it noticeably sensitive in crosswinds, especially with 65 mm wheels, and the 74° seat tube puts riders further forward than on a TCR. As of early October 2026 the frame was still not on the UCI list; XMCS says the paperwork is submitted. XMCS covered an order paid to a scammer who had hijacked a sales rep's WhatsApp account. Some dislike the look of the seat tube and the gap above 28-30 mm tyres.

AI Summary

Pros

  • Aero performance on par with Cervélo S5 and Quick Pro ER:One in XMCS's tunnel test; forum CdA 0.281 on the hoods, 0.239 in full aero
  • Refined, balanced ride: owners compare it to a Tarmac SL8 rather than a stiff, harsh aero bike, fine over bad roads and 180 km rides
  • Fast and responsive with precise, confident steering and composed descending; the integrated bar is very stiff

more pros in the review

Cons

  • Sensitive in crosswinds because of the deep front end, especially with 65 mm wheels
  • Not UCI approved as of early October 2026; XMCS says the documents are submitted
  • 74° seat tube puts riders further forward; those needing setback must rely on the offset post

more cons in the review

Key Points

  • Weights: painted L frame 961.9 g without hangers; fork 470 g uncut / 439 g cut; seatpost 192 g uncut / 167 g cut
  • Eurobike demo bike 6.48 kg without pedals
  • Tyre clearance 35 mm official, about 38 mm measured

more key points in the review

Codes from reviewers
Patrick Linoxmcarbonspeed.ccPatty30
Purchase

Where to Buy

$1,650.00· xmcarbonspeed.cc
View Deals

Specifications

Attributes

Frame TypeRoad
Frame MaterialCarbon
Brake MountFlat Mount Disc
Bottom BracketT47
SeatpostProprietary
Front Axle12x100mm Thru-Axle
Rear Axle12x142mm Thru-Axle
Max Tire Width35 mm
Headset Type—
Shifting SupportMechanical & Electronic
Max Chainring Size—
UDH CompatibleYes
Includes CockpitNo

Included Components

XMCS VRT
Frame
930g
XMCS Aero Gravel Fork
Fork
450g
XMCS Aero Gravel Seatpost
Seatpost
190g
XMCS Vortex Fork
Fork
445g
Headset
Headset
—
Total Weight2,015g

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Questions about XMCS VRT

Ordering & delivery

3

Price & value

1

Sizing & fit

2

Compatibility

4

Build & setup

3

Ride & performance

6

Finish & options

1
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