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Ridley X-Fire/Shimano 105 Disc Complete Bike

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Item # RID0103

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Item # RID0103


Always on the forefront of innovative frame designs, Belgium's Ridley continues to stay at the top of cyclocross podiums around the world with its latest collection of race machines. The Ridley X-Fire/Shimano 105 Disc Complete Bike was built to continue this tradition, as its efficient frame design, disc brakes, and reliable build kit deliver one of Belgium's finest race-ready packages.

Ridley's X-Fire Disc complete bike features a frame that's been constructed from 24-ton carbon fiber and a full-carbon 4ZA Oryx fork. To manage the load forces from the new disc brake, 4ZA now uses a reinforced lower-leg design. This is beneficial in three ways. First, the massive legs guarantee that you won't experience any lurching or torsion from the caliper. Additionally, the larger blades aid in absorbing any chatter, vibration, or shock from nasty terrain. And last, the 1-1/8 x 1-1/2in, oversized design provides unparalleled rigidity. Coupled with the massive head tube juncture, the Oryx fork provides nimble handling and an explosive sprinting prowess -- perfect for the short spurts of power required after barriers.

And while the newly redesigned fork is amazing, the frame construction and new features bring just as much to the table. For the carbon itself, the 'T' in 24t stands for ton -- meaning that the X-Fire's carbon is capable of withstanding 24 tons of pressure per square inch. This level of strength might sound weighty, but the opposite is actually true. Ridley knows that with stronger carbon, less is required to receive greater results. Accordingly, this application sheds weight while increasing torsional and lateral rigidity. Aside from carbon, Ridley's decades of 'cross experience bred a few frame features that you'll be happy to have when you're running in the mud. For one, the X-Fire has a squared top and down tube for a heightened sense of comfort and grip when you're shouldering the frame. In turn, this feature also stiffens the bottom bracket juncture for greater power efficiency. For added protection from the elements, and for unencumbered dis/re-mounts, Ridley incorporated internal cable routing for the shift cables and the rear brake line. Ridley even designed the fork shape to shed excess dirt and mud.

Of course, the real stars of the show are the X-Fire's mechanical disc brakes. Hayes CX-5 calipers and 160/140mm rotors provide the best stopping power and braking modulation on the market. After all, cantilevers have never been regarded as the 'ultimate' in power or efficiency, and frankly, we're surprised that it's taken this long to witness the shift. Now, the frame has increased mud clearances, and braking is no longer reduced in inclement weather. Also new for the X-Fire is a 135mm rear spacing. So now, you're able to keep your 29er wheelset in the pits as an easy backup or change-out option.

If you're able to think of it, Ridley has already done it. The X-Fire Disc is the culmination of a long list of Ridley innovations -- the first full-carbon cyclocross frame, the first oversized carbon cross fork, and the first 1-1/8 x 1-1/2in cyclocross head tube. It also plays host to a generous component package. For the shift/brake levers, front, and rear derailleur, the X-Fire uses the reliable Shimano 105. The drivetrain is driven by a Shimano CX50 46/36t crankset and a Shimano 105 chain, and Tiagra 12/28t cassette. Ridley's proprietary 4ZA Special cockpit componentry was applied throughout, making up the stem, handlebar, and seatpost. You rest on a Prologo ZERO saddle, and roll on Alex CXD26 Disc wheelset that's been cased in Challenge Grifo tires. As you're able to tell, the X-Fire Disc is ready for the dirt right out of the box.

The Ridley X-Fire/Shimano 105 Disc Complete Bike is available in the color Black/blue and in seven sizes from 41cm to 58cm.

Tech Specs

Frame Material:
24T high-modulus carbon fiber
4ZA Oryx
Fork Material:
carbon fiber
1.125 - 1.5 FSA Integrated Tapered Headset
Shimano 105
Front Derailleur:
Shimano 105
Rear Derailleur:
Shimano 105
36 - 46 t Shimano CX50
Bottom Bracket:
not included
12 - 28 t Shimano Tiagra
Shimano 105
Brake Levers:
Shimano 105
Brake Calipers:
Hayes CX Five
[front] 160 mm, [rear] 140 mm
4ZA Special Kit
4ZA Special Kit
Prologo Zero
4ZA Special Kit
Seat Collar:
Alex CXD26
Challenge Grifo
Tire Size:
700 c x 23 mm
Recommended Use:
Manufacturer Warranty:
10 years on frame

sizing chart

Bike size by rider height


Geometry chart


Geometry Chart



Seat Tube


Effective Top Tube




Stand OverHead Tube LengthHead Tube AngleSeat Tube AngleBottom Bracket DropChainstayWheelbase
41cm 45.0cm 50.2cm 49.4cm 37.8cm 80.0cm 9.0cm 72.0o 74.0o 5.3cm 42.5cm 99.3cm
48cm 52.0cm 52.5cm 52.3cm 38.5cm 82.5cm 11.5cm 72.0o 74.0o 5.7cm 42.5cm 100.6cm
50cm 54.0cm 53.0cm 53.3cm 38.1cm 83.5cm 12.5cm 72.0o 74.0o 5.7cm 42.5cm 100.6cm
52cm 56.0cm 53.5cm 55.4cm 37.7cm 85.0cm 14.5cm 72.0o 73.0o 5.9cm 42.5cm 100.7cm
54cm 58.0cm 54.5cm 57.5cm 38.0cm 87.0cm 16.5cm 72.0o 73.0o 6.1cm 42.5cm 101.6cm
56cm 60.0cm 56.0cm 59.4cm 38.9cm 89.0cm 18.5cm 72.0o 73.0o 6.1cm 42.5cm 103.2cm
58cm 62.0cm 57.5cm 61.3cm 39.4cm 91.0cm 20.5cm 72.0o 73.0o 6.1cm 42.5cm 104.3cm

Reviews & Community


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what's the weight

what's the weight

Best Answer

If you hunt around you'll find it's almost impossible to pin down a weight, not even Ridley has them listed anywhere. I did track down someone with a 52 that weighed it in at 18.76lbs. Hope that helps you out

I don't see how it can weigh in at 18.76 lbs. Mine is closer to 23 lbs and I've put on lighter wheels and a lighter cassette.

Will a 700x40 tire fit this frame?

Will a 700x40 tire fit this frame?

Best Answer


Here is an image with the stock 32mm tires. I think if you were to fit a 40mm tire on the rim that it would be quite tight.


Here is an image with the stock 32mm tires. I think if you were to fit a 40mm tire on the rim that it would be quite tight.

Mike- I tried 42mm Conti Crossrides and Speedrides on my new X-Fire frame. The front fork is NO problem. With the Crossrides (which have bigger lugs) on the rear it is pretty tight where the chainstays meet the bottom bracket. like about 2.5mm on each side-but they do fit. In mud they are probably too close.

The speedrides are more like 3mm each side as they have very small lugs so I think it's safe to say they fit OK, but still not a lot of clearance, and you'd be using them is less extreme conditions.

This may sound kinda crazy but back before front shock forks on mountain bikes we'd run bigger tires in front. Really helped, and doesn't look a weird as you might think!

Great Value!

  • Familiarity: I've used it once or twice and have initial impressions

Love it so far, it is a bit too heavy right out of the box, it just need to be put on a diet, then it's awesome, I normally ride 54cm on road bikes, I had to go down two sizes, so I got the 50cm, I also had to change the stem for a 120mm and now is just perfect. the seat tube is just super long, that's the reason for the downsize. Definitely the best deal around for a highly known brand carbon fiber CX. So looking forward for cross season this year. I would totally recommend this bike to a friend.

Great Value!

Kind of a boat anchor

  • Familiarity: I've used it once or twice and have initial impressions

Pretty surprised at the weight. Maybe all discs are like that. Feels like my singlespeed mtb. I feel like I can put it on a diet and fix some of that, but the really disappointing thing though is the brakes. If you want to stop, and not stop quickly, you had better be in the drops, squeezing for dear life. Don't even think about stopping from the hoods. Maybe there is a break-in, not really finding any documentation. Rides great, looks better, if I can get the brakes to work as good as a bad canti.

Kind of a boat anchor

Did you break in the brake pads yet? You need to do break in first.

They may have cheaped out on the housing. You need compressionless for the brakes to work properly. Also, think about trying the Shimano cx-77 brake calipers. They are designed to work with your lever's pull ratio, and are solid in my experience. Never really heard anything good about the Hayes.

Breaking in the brakes helped. Never knew to do that. Replacing them with TRP HY/RD brakes was fantastic.

Just did the same thing to mine; haven't really had to try the new TRP HY/RD out yet but they feel good so far.

When you put the TRP HY/RD's on did you change your cables to compressionless? I'm about to slap some on my x-fire...

Unanswered Question

1. What's the stand over height for...

1. What's the stand over height for size48?

2. Does this model come with fender and rack mounts?


Avg. ride time: 12h 18m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Using for CX races

  • Familiarity: I've used it several times

Great CX bike for racing and for fun!