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Build an uncompromising aero race bike with the Colnago Y1RS carbon frameset and lightweight ENVE SES 4.5 Pro 700c carbon wheelset.
Build an uncompromising aero race bike with the Colnago Y1RS carbon frameset and lightweight ENVE SES 4.5 Pro 700c carbon wheelset.
Balfe's Bikes

Colnago Y1RS Disc Carbon Aero Frameset 2026 in World Cup Black and ENVE SES 4.5 Pro Carbon Wheelset Bundle

£8,999.00 £10,299.00 13% off
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Colnago Y1RS Disc Carbon Aero Frameset 2026 in World Cup White and ENVE SES 4.5 Pro Carbon Wheelset Bundle
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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Hassle free returns

In the unlikely event that you are not satisfied with your purchase please feel free to return your items within 90 days of the purchase date for a full exchange or refund. Any item (excluding food, underwear or e-gift vouchers) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase.

It is recommended that you use a recorded delivery service or return to a store to ensure your items are received by us. We cannot assume responsibility for items that are lost in transit back to us.

Returning an item

Online or in-store purchases can be returned to any of our 12 stores free of charge or can be returned by post or courier at your cost after completing the online returns form below. If you are returning an item due to a fault, we will refund your postage costs.

Bikes & Bulky items

If you wish to return a bike or bulky item to us, please keep the box it arrived in and let us know by contacting our support team via our online webchat, email or by phone (020 45063856) and we will help arrange a collection.

Non Bike - Customer Returns Form

If you wish to return or exchange an item, please fill out the form below following the steps inside. Returns can be processed quicker if all required information is provided.




Terms & Conditions

Items must be returned in their original packaging and unused. Refunds will be issued once the product(s) have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:
1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £50 for collection (£100 from Northern Ireland). If you do not have the original box in usable condition, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid proof of purchase.

Colnago Y1RS Disc Carbon Aero Frameset 2026 in World Cup Black and ENVE SES 4.5 Pro Carbon Wheelset Bundle

Season:All Year Round

Brand:Balfe's Bikes

Code:COL.FS.25.Y1RSYSBC45P-WEB

Please note the image shows a complete bike build, this is the Frameset only.

The Colnago Y1RS and ENVE SES 4.5 Pro bring together two components developed around outright race speed. Colnago's Y1RS combines an aggressively aerodynamic carbon chassis with high stiffness and integrated design, while ENVE's SES 4.5 Pro wheelset targets the balance of low weight, aerodynamic efficiency and rolling performance required at the highest level of road racing.

Colnago states that the Y1RS reduces frontal area by 19% compared with the V4Rs and delivers 3.5% greater frame stiffness than its previous model. Its curved down tube, DEFY seatpost junction and integrated CC.Y1 cockpit with WYND© technology are designed to manage airflow while maintaining the responsiveness needed for powerful acceleration and fast racing.

The SES 4.5 Pro complements that platform with differentiated 49mm front and 55mm rear carbon rims and a claimed wheelset weight of just 1,295g ±3%. ENVE pairs the rims with its INNERDRIVE Pro straight-pull hubs and ceramic bearings, while the 23.5mm internal rim width is aerodynamically optimised around 27–28mm tyres.

Features & Benefits:

  • Complete Aero Race Platform: The Y1RS frame and staggered-depth SES 4.5 Pro wheels combine frame and wheel aerodynamics into a package intended for high-speed road racing.
  • Low Weight Without Sacrificing Speed: ENVE quotes a 1,295g ±3% wheelset weight while retaining 49mm front and 55mm rear rim depths for aerodynamic performance.
  • Race-Focused Integration: Colnago's integrated CC.Y1 cockpit and aerodynamic frame details are paired with ENVE's INNERDRIVE Pro ceramic-bearing hubs and tubeless-ready carbon rims.

Full Specification:

  • Frame: Colnago Y1RS carbon aerodynamic road-race frame
  • Fork: Colnago Y1RS carbon fork
  • Number of Gears: Dependent on chosen groupset
  • Gear Shifters: Compatible with electronic groupsets
  • Pedals: Not Supplied – Shop Pedals Here
  • Wheelset: ENVE SES 4.5 Pro carbon, 700c, tubeless ready, white decals, 1,295g ±3% wheelset weight
  • Front Wheel: ENVE SES 4.5 Pro, 49mm depth, 587g, 12x100mm, 24-hole
  • Rear Wheel: ENVE SES 4.5 Pro, 55mm depth, 708g, 12x142mm, 24-hole, Shimano HG freehub
  • Rims: Carbon, 30.8mm external width, 23.5mm internal width, tubeless ready
  • Front Hub: ENVE INNERDRIVE Pro Straight-Pull with Pro Ceramic Bearings, Centerlock
  • Rear Hub: ENVE INNERDRIVE Pro Straight-Pull with Pro Ceramic Bearings, Centerlock, Shimano HG freehub
  • Spokes: Alpina Ultralite Aero R5 with TCX 2/1.5/2
  • Tyres: Not supplied; ENVE aero optimisation is 27–28mm, with a stated minimum tyre size of 28mm (27mm ENVE)
  • Brakes: Disc brake compatible
  • Handlebars: Colnago CC.Y1 with WYND© technology
  • Stem: Integrated CC.Y1 cockpit; XS 95mm, S 105mm, M 115mm, L 125mm, XL 125mm
  • Seatpost: Colnago DEFY dual Y-shaped aerodynamic seatpost system
  • Weight: Frameset weight not supplied; ENVE wheelset 1,295g ±3%

Manufacturers reserve the right to change specifications without notice based on availability at the point of assembly.


Size Chart for Colnago Y1RS Bikes
Colnago Y1RS

GeometryXSSMLXL
Reach368 mm377 mm386 mm395 mm404 mm
Stack495 mm520 mm540 mm565 mm590 mm
Fork376.5 mm376.5 mm376.5 mm376.5 mm376.5 mm
Rake55 mm49.5 mm45 mm42.5 mm42.5 mm
Trail (28-622 tyres)61 mm59.5 mm57.5 mm57 mm57 mm
Hs – Head Tube Length88.5 mm108.5 mm126.5 mm150.5 mm176.5 mm
Ss – Head Tube Angle70.8°71.9°73.0°73.5°73.5°
Virtual Sc° – Seat Tube Angle75.0°74.5°74.0°73.7°73.0°
C – Chainstay Length408 mm408 mm408 mm408 mm408 mm
A – Front Centre577.5 mm579.5 mm581 mm590 mm606 mm
BB Drop – Bottom Bracket Offset74 mm74 mm72 mm72 mm72 mm






Warranty Information for Colnago:

Colnago Ernesto E C Srl guarantees its frames, if purchased from authorized Colnago dealers, free of production defects or materials for:

Three yearsfrom the date of purchase at retail if, within ten days of the purchase, it is registered on the sitewww.colnago.com.

Two yearsif it does not register within ten days of purchase or for warranty replacement products.

Two yearsfor the E64 model from the retail purchase date.

A frame that is recognized as defective by Colnago Ernesto E C Srl in the terms of this warranty will be repaired or replaced, at the discretion of Colnago. In case of NON availability of the original product, the replacement will take place with a similar product of equivalent value. We remind you that the Colnago warranty covers any aesthetic and / or painting defects for 12 months (1 year).

Products of other companies, mounted on Colnago bicycles, are covered by the guarantees of the respective manufacturers, to which you are kindly requested.

Click here to find out more and to read the full warranty terms and conditions.

Sizing Information
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