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The Colnago G4-X is a high-performance carbon gravel bike designed for versatility and stability across varied terrain with 45mm tyre clearance.
The Colnago G4-X is a high-performance carbon gravel bike designed for versatility and stability across varied terrain with 45mm tyre clearance.
Colnago

Colnago G4-X Carbon Gravel Complete Bike Shimano 825 2x12 in Green

£5,999.00
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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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Returns

ONLINE BIKE FIT PAYMENTS

You can cancel your bike fit appointment up to 48 hours prior to your bike fit and receive a full refund. Cancelling your appointment under 48 hours Velosport will not supply a full or partial refund, unless previously agreed by a member of staff.

You can change the date of your bike fit appointment up to 24 hours prior to your bike fit. Changing your appointment any later than 24 hours before your appointment you may be subject to a late amendment fee, or cancellation of your appointment without return of your payment or deposit unless previously agreed by a member of staff.

Customers that book and attend a frame sizing and afterwards by a bike from us will have the price of the frame sizing refunded at the point the bike is purchased.

CANCELLATION & RETURNS

For online orders if you are not completely satisfied with your purchase, you can return the items (excluding ridden bikes) to us in their as sold condition with packaging within 28 days of receipt.
We will issue a refund or exchange the item for a different size / colour if preferred. Delivery charges are only refundable where the goods are faulty.
Sorry, we cannot accept returns of books or software where any seals have been broken.
Please note :
The item is your responsibility until it reaches us. We recommend that you send the parcel using a delivery service that insures you for the value of the goods.
The cost of returning the item to us is your responsibility.
The parcel can take up to 7 working days to be processed once received.
The item(s) must be returned in its original packaging with all labels and tags and with all enclosed documentation.
We will be unable to accept the return of any item where there is evidence that these instructions have not been followed.
For large items such as bikes and wheels we reserve the right to charge a re-stocking fee of 10% to cover our administration costs.
Bikes must be returned in show room condition, and not ridden.
Faulty Item
If the item you received is faulty, please contact us with details of the product and the reason for return, and whether you require a refund or a replacement. We will then advise on how to proceed with the return. You have 30 days from receipt of the faulty item to notify us of your intent to return it and a further 30 days in which to do so.
Bike Returns

Once ridden, bikes cannot be returned.

If you are unsure of the correct size of bike, please contact us before placing your order.
Incorrect Item

If the item you received is not what you originally ordered, please contact us with details of the product and the reason for return, and whether you require a refund or a replacement. We will then advise on how to proceed with the return.
All refunds will be given as soon as possible, and usually take the form of a refund transaction onto the card used for the original purchase. At the very latest we will refund your money within 28 days from the day we receive your returned item. In the case of incorrect ordering and undisclosed reasons for return, a credit or exchange may be issued and the customer will be expected to pay the return postage costs.



For online orders you also have rights under The Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 CCR2014 which state that up to 14 days after receiving your goods, in most cases, you can change your mind and get a full refund. You have the right to cancel this contract within 14 days from delivery without giving any reason. This right does not apply to any customised or personalised goods bought through our website. To exercise this right please contact us prior to the expiry of the cancellation rights period. Please note ridden bikes cannot be returned or exchanged. Faulty bikes are subject to warranty

If you cancel this contract, we will reimburse to you all payments received from you, including the costs of delivery (except for the supplementary costs arising if you chose a type of delivery other than the least expensive type of standard delivery offered by us). Where charges apply, you are responsible for paying the return delivery charges.

We may make a deduction from the reimbursement for loss in value of any goods supplied, if the loss is the result of unnecessary handling by you.

We will make the reimbursement without undue delay, and not later than:

  • 14 days after the day we received back from you any goods supplied; or
  • (if earlier) 14 days after the day you provide evidence that you have returned the goods; or
  • if there were no goods supplied, 14 days after the day on which we are informed about your decision to cancel this contract.

We will make the reimbursement using the same means of payment as you used for the initial transaction, unless you have expressly agreed otherwise; in any event, you will not incur any fees as a result of the reimbursement.

The Consumer Rights Act 2015 says goods must be as described, fit for purpose and of satisfactory quality. During the expected lifespan of your product you're entitled to the following:

  • up to 30 days: if your goods are faulty, then you can get a refund;
  • up to six months: if they can't be repaired or replaced, then you're entitled to a full refund, in most cases;
  • up to six years: if the goods do not last a reasonable length of time, you may be entitled to some money back.
  • Bikes must be retured in show room condition.

This is a summary of some of your key rights. For detailed information from Citizens Advice please visitwww.citizensadvice.org.uk.

Customer Cancellations

Under the Consumer Contracts (Information, Cancellation & Additional Charges) Regulations you have the right to cancel your order for any item bought on this website for a full refund. This doesn’t apply to:

  • Goods made to the customer’s specification or are clearly personalised
  • Goods that are in clearance sales
  • Goods ordered that a subject to a restocking fee
  • Goods which are liable to deteriorate (nutrition) or expire rapidly (magazines)
  • Delivery fees where applicable

To cancel an order emailCustomer Service, call: 0.208.780,1978, or write to us at Velosport, 252 Upper Richmond Road, Putney, SW15 6TQ.

You can cancel anytime from placing your order up to the time you take possession of the goods (or in the case of a multiple order, the last part of the order).

Items should be returned with the original packaging and with any labels still attached and be in a new and unused condition. We are entitled to deduct an amount from the refund to reflect any loss in value of the goods supplied, if the loss is the result of unnecessary handling of the goods by you. We do not cover the costs of returning an item.

The Consumer Contract (Information, Cancellation and Additional Charges) Regulations do not apply to Financial and Insurance Services.

Velosport Cancellations

We reserve the right to cancel the contract between us if:

  • We have insufficient stock to deliver the goods you have ordered
  • The delivery service provider does not deliver to your area
  • One or more of the goods you ordered was listed at an incorrect price due to a typographical error or an error in the pricing information received by us from our suppliers; or
  • We have reason to suspect that there is a risk of a fraudulent transaction

If we do cancel your contract, we will notify you by email and will re-credit to your account any sum deducted by us (in respect of goods provided by us, and delivery services provided by the delivery service provider (unless amounts in respect of delivery are refunded directly by the delivery service provider), from your debit or credit card as soon as possible but in any event within 30 days of your order. We will not be obliged to offer any additional compensation for disappointment suffered.

Bike ordering is subject to a 20% handling charge which is non refundable.

We will charge a 20% handling fee for any bike refunds which are not down to a manufacturing fault.

Sale items cannot be purchased using finance.

ONLINE BIKE FIT PAYMENTS

You can cancel your bike fit appointment up to 48 hours prior to your bike fit and receive a full refund. Cancelling your appointment under 48 hours Velosport will not supply a full or partial refund, unless previously agreed by a member of staff.

You can change the date of your bike fit appointment up to 24 hours prior to your bike fit. Changing your appointment any later than 24 hours before your appointment you may be subject to a late amendment fee, or cancellation of your appointment without return of your payment or deposit unless previously agreed by a member of staff.

Customers that book and attend a frame sizing and afterwards by a bike from us will have the price of the frame sizing refunded at the point the bike is purchased.

Colnago G4-X Carbon Gravel Complete Bike Shimano 825 2x12 in Green

Season:2025

Brand:Colnago

Code:COL.CB.25.G4X.2XMYTL

The Colnago G4-X is a high-performance carbon gravel bike designed for versatility and stability across varied terrain.

The G4-X can fit tyres with a maximum nominal width of 45mm, providing ample clearance for off-road adventures. For longer rides, the frame is equipped with four mounting points for bottle cages or small bags, ensuring you can carry all necessary equipment. The bike features a standard T47 bottom bracket and a new seatpost lock designed to withstand higher tightening torque, guaranteeing stability and safety during intense off-road riding.

Features:

  • Colnago G4-X carbon frame and fork
  • Shimano RX-825 Di2 2x12-speed electronic groupset
  • Vision SC40 i23 carbon wheels with 12mm thru-axles
  • Pirelli Cinturato 700-40c tyres
  • Deda Superzero Gravel alloy handlebar and Colnago RS10 alloy stem
  • Shimano FC-RX825-2 48-31T crankset with 11-36T cassette
  • Shimano BR-RX825 hydraulic disc brakes with RT-M800 rotors
  • Colnago carbon seatpost and Selle Italia Model X BB FEC saddle
  • Acros SS headset bearings (42 x 52 x 7mm - 40 x 52 x 7mm)
Technical Information
  • Series
    G Series
  • Model
    Colnago G4-X
  • Frame (material)
    Monocoque carbon.
  • Fork (material, section notes)
    Carbon fork for disc brakes, external cables, section with round circumference
  • Headset bearings
    ACROS ss 42x52x7mm - 40x52x7mm
  • Seatpost
    Carbon seatpost, 0.15 offset, "D-Shape" section
  • Through axles
    Diameter: 12 mm. length 100 mm (front) - 142 mm (rear)
  • Shifting system
    Sram RED 1x13 XPLR AXS
  • Front derailleur
    This goupset has a single chainring
  • Rear derailleur
    Sram RED XPLR eTap AXS - RD-RED-1E-E1
  • Chain
    RED Chain - CN-RED-E1
  • Chainrings
    40T
  • Cassette
    10-46T 13s
  • Bottom bracket
    T47 Sram DUB Road
  • Crank length
    Sizes 450 - 480: 170 mm; Sizes 520 - 570: 172.5 mm
  • Brakes
    Disc brakes SRAM Red eTap AXS HRD SHIFT-BRAKE SYSTEM - CenterLine XR Rotor
  • Disc size
    160 mm Front/ 160 mm Rear
  • Brake lever
    SRAM Red eTap AXS HRD SHIFT-BRAKE SYSTEM
  • Brake caliper
    SRAM Red eTap AXS HRD SHIFT-BRAKE SYSTEM
  • Wheels
    Vision SC 45 Disc
  • Material
    Carbon – with hooks
  • Rim height
    45mm
  • Internal channel width
    21 mm
  • Hubs
    Hubs with direct pull spokes
  • Tyres
    Pirelli Cinturato Gravel 40 TLR
  • Maximum tyre size
    42 mm (nominal width)
  • Saddle
    NOVUS BOOST EVO Superflow FeC; "Selle Italia" Model X BB FEC
  • Handlebar
    CC.01 Wide integrated cockpit; Sizes 450: Width: 400 mm; Sizes 480 -540: Width: 420 mm; Sizes 570: Width: 440 mm
  • Stem
    Integrated cockpit (CC.01 Wide); Size 450 - 480: Length: 90 mm; Sizes 520- 570: Length: 100 mm
  • Handlebar Tape
    Colnago Grip Black
  • Bottle cage
    Colnago Matt Black (1x)
  • Shifting system
    Sram Force XPLR AXS Disc
  • Front derailleur
    (This groupset has a single chainring)
  • Rear derailleur
    Sram Force 13s: RD-FRC-1E-E1
  • Crankset
    Sram Force: 40T
  • Cassette
    Sram Force: 10-46 (13s) - CS-XG-1371-E1
  • Brakes
    Disc brakes SRAM Force - CenterLine XR Rotor
  • Brake lever
    SRAM Force AXS HRD Shift-Brake System - ED-FRC-E1
  • Brake caliper
    SRAM Force eTap AXS HRD SHIFT-BRAKE SYSTEM
  • Shifting system
    Shimano GRX 825 Di2 2x (electronical shifting)
  • Front derailleur
    Shimano GRX 2x: Shimano FD-RX820
  • Rear derailleur
    Shimano GRX 2x: Shimano RD-RX820
  • Chain
    Shimano GRX: Shimano CN-M8100 12V
  • Crankset
    Shimano GRX 2x: 48-31T
  • Cassette
    Shimano GRX 2x: 11-36 12v
  • Bottom bracket
    ACROS T47
  • Brakes
    Shimano RX-820, 160 mm Front / 160 mm Rear, RT-MT800-S rotors
  • Brake lever
    Shimano ST-RX820
  • Brake caliper
    Shimano RX-820
  • Shifting system
    Shimano GRX 822 1x
  • Rear derailleur
    Shimano GRX 1x: Shimano RD-RX822-SGS
  • Crankset
    Shimano GRX 1x: 42T
  • Cassette
    Shimano GRX 1x: 10-51 12v
  • Wheels
    Fulcrum Lite ER (for clincher and tubeless ready)
  • Material
    Rims: aluminium, Spokes: stainless steel.
  • Rim height
    Front: 24 mm; Rear: 24 mm
  • Internal channel width
    23 mm
  • Hubs
    Aluminium, Sealed Cartridge Bearings
  • Shifting system
    Shimano GRX 820 2x
  • Stem
    Deda ZERO1; Size 46s: Length: 90 mm; Size 49s: Length: 100 mm; Sizes 52s - 55s: Length: 110 mm; Sizes 58s: Length: 120 mm
  • Handlebar
    Deda Gravel 100; Sizes 46s: Width: 400 mm; Sizes 49s - 55s: Width: 420 mm; Sizes 58s: Width: 440 mm
  • Reach
    371 mm
  • Stack
    535 mm
  • O
    524 mm
  • Fork
    406 mm
  • Ss
    71°
  • Sc
    74°
  • C
    430 mm
  • A
    585 mm
  • BB drop
    72 mm
  • Default crank length
    170 mm
  • Default stem length (Colnago SR10)
    90 mm
  • Default handlebars width (Deda Superzero)
    400 mm (C-C)
  • Default cockpit size (CC.01 Wide)
    90mm - 400/460 mm (C-C)
  • Reach
    380 mm
  • Stack
    554 mm
  • O
    539 mm
  • Ss
    71.5°
  • A
    596 mm
  • Reach
    390 mm
  • Stack
    573 mm
  • O
    560 mm
  • Sc
    73.5°
  • A
    613 mm
  • BB drop
    70 mm
  • Default stem length (Colnago SR10)
    100 mm
  • Default handlebars width (Deda Superzero)
    420 mm (C-C)
  • Default cockpit size (CC.01 Wide)
    100mm - 400/460 mm (C-C)
  • Reach
    400 mm
  • Stack
    591 mm
  • O
    581 mm
  • Sc
    73°
  • A
    628 mm
  • Default stem length (Colnago SR10)
    110 mm
  • Default cockpit size (CC.01 Wide)
    110mm - 400/460 mm (C-C)
  • Reach
    410 mm
  • Stack
    600 mm
  • O
    596 mm
  • A
    644 mm
Sizing Information
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