About The X-Lab XDS GT8 Carbon Shimano GRX Di2 Gravel Bike

The X-Lab XDS GT8 is X-Lab's first gravel bike, pairing a full carbon frame and fork (Toray T-800) with a Shimano GRX Di2 1x electronic groupset. It's built for long, mixed-surface rides that move between pavement, dirt, and rougher trail sections, where wide gearing and stable handling matter more than shaving grams. At 8.78 kg / 19.31 lbs (size M), it carries a full power meter crank and a wide-range cassette without landing in heavyweight territory.

What separates the GT8 from most bikes in its category is its component spec: a Branta alloy crankset with an integrated power meter and Apple Find My anti-theft tracking, matched to a mountain-bike-derived Shimano CS-M6100-12 cassette spanning 10-51T. That range, combined with 700x45C Continental Terra Trail tires and clearance up to 55C, gives the GT8 climbing gears and tire options wider than many gravel-specific setups built around narrower, road-derived cassettes.

Who It's For

  • Riders who want electronic shifting and a built-in power meter without adding components separately

  • Riders tackling steep or sustained climbs who want the security of a 10-51T range

  • Riders who want room to run wider tires (up to 55C) on rougher or loose surfaces

  • Riders who prefer a narrower-range, road-oriented gravel setup or a carbon (rather than alloy) crankset should look at a different build

What to Look For

  • Drivetrain range: the 1x GRX Di2 setup with a 10-51T cassette trades top-end gearing for climbing range — confirm that tradeoff fits your terrain

  • Tire clearance: stock 700x45C tires with room up to 55C leaves space to size up for rougher routes

  • Frame compatibility: the UDH-compatible frame affects long-term derailleur hanger replacement and future drivetrain compatibility

Key Features

Frame & fork: The XDS carbon frame and fork are built from Toray T-800 carbon, with a UDH-compatible hanger and a 100x12mm thru-axle fork — details that matter for long-term hanger durability and replacement.

Groupset: Shimano GRX Di2 (RD-RX717 derailleur, ST-RX717 shifters) delivers electronic 1x shifting, paired with the wide-range CS-M6100-12 10-51T cassette for climbing gears beyond most gravel-specific cassettes.

Brakes: Shimano GRX BR-RX715 hydraulic disc brakes with SM-CL700 160mm rotors front and rear provide consistent stopping power in wet or muddy conditions.

Wheels & tires: The Branta C45 carbon gravel wheelset with stainless steel spokes is paired with Continental Terra Trail 700x45C tires, with clearance up to 55C for wider tire options.

Standout technology: The Branta alloy crankset (40T, narrow-wide) builds a power meter and Apple Find My anti-theft tracking directly into the crank arm.

Finishing kit: Branta carbon stem and handlebar, an XDS 27.2mm carbon seatpost, and a Fizik Terra Argo X7 saddle round out the build.

Rider Intent Summary

  • Biggest strengths: wide-range 1x Di2 drivetrain, integrated power meter, and generous tire clearance (up to 55C)

  • Tradeoffs: an alloy (not carbon) crankset, and a mountain-bike-derived cassette rather than a dedicated gravel-range cassette

  • What makes it different: a built-in power meter with Apple Find My anti-theft tracking — a combination not common at this component tier

Victory's Take

At Victory Bicycle Studio, we see the GT8 as a strong fit for riders who want electronic shifting and ride data built in from day one rather than added later. The 10-51T range and 55C tire clearance make it a versatile choice for riders who split time between smooth gravel and rougher, steeper terrain.

What you get

  • Frame - XDS Carbon Frame, Toray T-800, UDH Compatible
  • Fork - XDS Carbon Fork, Toray T-800, 100x12mm Thru-Axle
  • Wheels - Branta C45 Gravel Carbon Wheelset, Stainless Steel Spokes
  • Components - Shimano GRX Di2 and Branta
X-Lab XDS GT8 Carbon Shimano GRX Di2 Gravel Bike

XDS

X-Lab XDS GT8 Carbon Shimano GRX Di2 Gravel Bike

Regular price $3,199.00 USD
Sale price $3,199.00 USD Regular price

features

  • Branta C45 Gravel Carbon Wheelset

    The Branta C45 Gravel Carbon Wheelset is the
    carbon wheelset used on most XDS GTD Gravel Bikes.
    Equipped with 700x45c tires and capability to go as wide
    as 700x55c, these wheels will provide the stability and
    durability that you need to churn out those long miles.

  • Shimano GRX 717 Di2 Groupset

    The Shimano GRX 717 Di2 Groupset is a great choice
    for riders who want a gravel focused groupset that provides
    fast electronic shifting without compromising durability that
    you may encounter on tough terrain.

  • Branta Alloy Crankset with Power Meter

    The Branta alloy crankset with power meter is an integrated dual-sided power meter that will measure power from both your right and left leg so you can analyze your training data in an effort to improve future performance.

Specifications

Frameset
Frame

XDS Carbon Frame, Toray T-800, UDH Compatible

Fork

XDS Carbon Fork, Toray T-800, 100x12mm Thru-Axle

Wheels
Wheelset

Branta C45 Gravel Carbon Wheelset, Stainless Steel Spokes

Tires

Continental Terra Trail, 700x45c

Drivetrain and Brakes
Rear Derailleur

Shimano GRX, RD-RX717 Di2

Brakes

Shimano GRX, BR-RX715

Crankset

Branta Alloy Power Meter Crankset

- 40T

- Narrow-wide Teeth

- 24mm Steel Spindle

- Apple Find My Anti-Theft Technology

Cassette

Shimano CS-M6100-12, 10-51T

Cockpit
Handlebars

Branta Gravel Carbon Handlebar

Stem

Branta Carbon Stem

Seatpost

XDS Carbon 27.2mm

Saddle

Fizik Terra Argo X7, s-alloy rails

**Specifications subject to change without notice

Frequently Asked Questions

How is the bike packaged and how long does delivery take?

All bikes are securely packaged to ensure that damage doesn't occur during shipping. All parts of the bike are padded and if needed, zip tied to minimize or eliminate movement inside the box. Once a bike is handed to the shipping company (usually Fedex or UPS), depending on your location, delivery will range from 1 day to 8 days. If you do choose the option for Professional Assembly or White Glove Delivery, this can add anywhere from 2 days to 5 days to the lead time.

Can I finance the purchase of my new bike?

Yes.  Simply select the Shop Pay Installments option which will allow you to buy now and pay later.  Shop Pay Installments is powered by Affirm.  If you would like to determine your spending limit, simply download the Shop app or the Affirm app on your smartphone and after you create an account on one of these apps, the app will let you know what is your spending limit.

Can I return the bike if it doesn't suit my needs?

Our return process is as follows. The customer is responsible for the return label ($150). Once the returned bike arrives at our warehouse, our team will inspect it and make sure it is in new condition and undamaged. Once we verify, we will process the return and issue a refund to the original payment method on file. To clarify the amount refunded, it would just be the amount of the bike (and tax if applicable) less the $150 shipping label that we provided, but the original shipping is not refunded. So if the original bike cost $4,500 and shipping was $150 (so you paid $4,650), you would be refunded $4,350 (the $4,500 less $150 for the return label) assuming the bike was returned in new and un-used condition and within the 30 day return period.

What does the warranty of my new bike or product cover and what is the warranty period?

Depending on the bike or any product, different companies have different warranty policies.  If you do ever have an issue with your bike or any product, simply email us at online@victorybicyclestudio.com and we will assist with any warranty issues and clarify the warranty for the affected product.

Can I have my bike serviced at any bike shop?

Typically, to avoid any issues with your warranty, you should bring your bike to a certified mechanic or bike store for that bike (i.e. if you have a Trek bicycle, you should bring the bike to be serviced to a local bike store that is an authorized Trek dealer).  If you need assistance, simply email us at online@victorybicyclestudio.com and we can direct you to a certified dealer of your bike.

Do you ship bikes internationally?

We unfortunately do not ship bikes outside of the 48 contiguous states of the United States. We do recommend for international customers to open (or use a current account) account with a freight forwarding company. If you use a freight forwarding company located in the U.S., make sure to put your billing address for a dedicated credit card as the same address as the freight forwarder so that you don't have any credit card or payment method issues).

Once you do this, simply place an order with us and we can ship to the U.S. address as long as the credit card doesn't get rejected. Once the freight forwarder has the box/order/shipment, you would instruct them to then ship to you in your home country and they would charge you their own shipping charge to ship to your international address.

Do you offer free shipping?

We do offer free shipping on non-bike orders over $100. We do not offer free shipping for bicycles unless it is a one time promotion. Generally, bike shipping will cost $150 and that covers just the shipping of the bike with no assembly. If you were to bring that bike to your local mechanic or bike store, you would pay them their assembly fee. If you choose our Professional Assembly option for $200, our service technicians would assemble the bike before shipping and then re-pack the bike safely for transit. When you receive the bike you would attach the front wheel, attach the seatpost/saddle, and raise the handlebars and clamp them. Those three items do have to be detached to minimize or eliminate the chance of damage in transit.

How much does shipping cost?

For orders of parts, accessories, apparel, etc. on orders under $100, shipping is a flat rate of $9.99. Regular bike shipping without assembly is $150, bike shipping with Professional Assembly is an additional $200 (so $350 in total which includes the $150 of regular shipping). Our White Glove Delivery option is $699 and that will cover the assembly of the bike and our White Glove Delivery partner delivering your dream bike to your front door, ready to ride!

How can I track my order?

When you place your online order, you will receive an instantaneous email update with your order number and order details, and shortly after, you will receive a follow up order email with the tracking number for your order.  If you still need assistance with your order, feel free to email us at online@victorybicyclestudio.com and we will respond asap.

What happens if my package arrives damaged?

If your package arrives damaged, email online@victorybicyclestudio.com with pictures of all angles of the box and pictures of the damaged product and we will work with you to either send a new replacement asap and coordinate return (or re-imburse you for labor or costs incurred to fix the issue at your local bike store).

Are pedals included with the bike?

If you do not see pedals in the bullet point product specs on the product page, the bike does not come equipped with pedals.  Many manufacturers do not spec bikes with pedals, so they are often purchased separately.

If I only pay the $150 for bike shipping, can I assemble the bike on my own?

Victory Bicycle Studio highly recommends that you bring your bike to your local certified bike store for the brand of the bike that you purchased. If you do attempt to assemble the bike and damage occurs, this may result in your warranty not being honored. For that reason, we do highly recommend to select our Professional Assembly option for $299.