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Item # LTS0040

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Science, meet art.

Every bike company has a Pro-level bike. The Litespeed C1R is a ProTour-level bike and might soon have a ride in Europe. It's the lightest, stiffest, fastest, and most aero of their C-series frames and is ready to be ridden fast by strong, aggressive riders who want no energy wasted.

The C1R frame is dazzling on the page and screen. In person, it's dizzying. The scaled images you see hide the gloriously varied shapes of the frameset. Litespeed C1R DetailJust take a look at the down tube. It looks huge. In person, you can see how the tube subtly changes shape throughout its length. There is no extreme flare where the down tube meets the bottom bracket, but a gradual widening of the tube as it travels from the head tube. The profile at the trailing edge of the down tube widens near the cage mount, giving room for your water bottle to nestle somewhat hidden from the wind. At the back of the bike, the seat stays are wide and flat for shock absorption where they join the seat tube and they morph on their journey to the rear dropouts, becoming narrow and more aero because more wind passes over them by the dropouts. Same goes for the top tube, which starts out massive for front end stiffness and getting small for compliance by the seat tube. And when you look at a Small frame next to a Medium, next to a Large, you'll see subtle differences in the shaping as well; Litespeed takes each frame as its own design rather than just doing just one tubing design for the entire size run.

Litespeed is part of the American Bicycle Group, the same company that owns Quintana Roo. Thanks to this tie to QR, Litespeed has access to lots and lots of wind tunnel data. This helped them go into the wind tunnel with some pretty good ideas on how to make a bike frame more aerodynamic. The shaping described above they call Aerologic. And their test data shows it really works. They took their Archon Ti' and C frames to the A2 tunnel, equipped them with identical components and ran the tests at the industry-standard 30mph speed. The reduction in drag goes from a minimum of 100g of drag when the bike is facing directly into the wind to a maximum of almost 200g. The difference is about the equivalent of adding a set of aero wheels to a regular road bike; only you're getting that benefit with training wheels. It's that much faster when you put on your aero race wheels.

Part of the design advantage comes from the fork shape. It's a bit different from most integrated carbon fiber forks in that the crown is designed to help airflow around the frame, and the legs are narrow and placed a bit wider than usual to give more room for air to flow around the wheels. It's a faster shape than many forks. The crown is a great example of how integrated components should work, as it flows seamlessly into the head and down tubes.

Inside the head tube, the fork is forward-thinking as well. The steerer is carbon-fiber and tapered, with a 1-1/8" race at the top and a 1.5" at the bottom. The rake is 43mm. The fork tips are carbon-wrapped Inox stainless steel.

The seat mast itself is another example of aerodynamics and light weight being on the same page. Because it's integrated, the design saves weight. Because they can better control the shaping, the mast is more aerodynamic.Litespeed C1R Detail And because it's a larger size than a traditional seat post, it's also stiffer for better power transfer.

The C-series frames all come out of the same mold. The C1R is set apart from the others by both the seat mast and the materials. Yes, it's still carbon-fiber, but this frame gets 60T carbon-fiber cloth added to the mix to maximize stiffness and minimize weight. It is also unique in the model line for using nanotube-enhanced resin for greater impact strength. Don't expect to see handlebars crack a top tube with the C1R; this bike was built not only to be strong and light but be a Timex, it takes a lickin' and keeps on tickin'.

An important feature of Litespeed's molding process is what they call Reactive Pressure Molding, or RPM for short. In addition to using bladders, they also use internal forms that help press out from the inside to eliminate voids without leaving molding parts behind when the process is done. RPM is another way Litespeed saves weight and increases strength.

There wasn't an aspect of frame building too tiny to escape Litespeed's eye. Even the dropouts have been considered and changed. They may look like carbon, but there are Inox stainless steel skeletal pieces inside and they've been over-molded with carbon-fiber. The replaceable derailleur hanger is stainless, too.

The C1R uses FSA's K-Wing Aero Integrated Seat Post. The stub that goes inside the frame is a carbon Kevlar composite molded to slide perfectly inside the mast. It is tightened by a bolt on top of the unit that pulls an expander wedge against the mast. The saddle clamp is made of 7075 aluminum and the hardware is made of stainless steel. There is a left and right bolt to tighten down on the clamp. The clamp has 12.5mm of setback. The overall length of the component is 131.7mm. You have 30mm of up and down adjustment, and the post is supplied with spacers to fill up that space. It is also recommended that if you cut down the post to save the mast section to cut into spacers for a more precise look. For those who fear owning a bike with a mast, know that Litespeed makes an accessory seat post and clamp kit, the same post and clamp that comes with the other Litespeed C frames, so you can cut off the mast and go more traditional if you want.

Because of the massive down tube, a traditional front derailleur clamp can't fit, so it has a "braze on" mount. The bottom bracket is a BB30 design to optimize light weight and stiffness. If you're not a fan of BB30 or would prefer to use your favorite crank and bottom bracket combo, adapters are available to easily make the conversion. The cable guides are external, as that's what pro team mechanics prefer.

Litespeed offers a limited lifetime warranty on their frames that will cover manufacturing defects. They also have a crash replacement policy.

The Litespeed C1R comes in Matte Black with White decals. Sizes are Small, Medium, Medium Large, Large, and X-Large.

  • Shrouded water bottle mount provides maximum aero advantage while still allowing you to use standard bottles
  • BB30 offers unmatched stiffness and weight savings
  • Variable layup and thickness in the carbon make the most of every piece of fiber
  • Unique seatstay design provides vertical compliance for a softer ride while maintaining aerodynamic performance

Tech Specs

Front Triangle:
carbon fiber
Fork Material:
Litespeed tapered
Steer Tube Type:
Head Tube Diameter:
1.125 - 1.5 in
Bottom Bracket Type:
950 g
seat mast cutting guide, seat mast head
Recommended Use:
Manufacturer Warranty:
limited lifetime

Geometry chart


Litespeed C1R Frameset Geometry
Top Tube Length 20.7in
Head Tube Angle 72.5deg 73deg 73deg 73deg73.5deg
Seat Tube Angle 74deg 73.5deg 73deg 73deg73deg
Seat Tube Length (ISM)28.0in
Chainstay 15.6in
BB Drop2.6in
Head Tube Length4.3in

Reviews & Community

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Here's what others have to say...

5 5

Incredibly stiff and aero

  • Familiarity: I've put it through the wringer

I have now put on over 7,000 miles the past year on my C1R. I have an Ultegra build, 3T stem and bars, FSA K-Force Light cranks, and Reynolds 32mm carbon clinchers. I would not change a thing on this bike. The 60 ton carbon fiber used for the frame, and the aero shape make this an incredibly stiff and aero bike. This bike can hang with bikes costing $5k+. I've owned a Cervelo and Trek and think this is the best bike I've ever ridden by far.

Great bike!

Great bike!

Bike rides great, very stable. Accelerates well, descends OK.

design is very thoughtful

Unanswered Question

Write your question here...Hi there do you...

Write your question here...Hi there do you ship to the uk?

I understand FSA makes the seat tube clamp...

I understand FSA makes the seat tube clamp or this bike; do they make a forward clamp to make this a "Tri" bike? I'm looking to go the "one bike does all" route so this could prove to be the deal maker.

Responded on

They do not right now at this time. You could scoot the saddle forward on the rails for shorter time trials.

5 5


Love this bike! It is super stiff, aero, and climbs very well. You will not be disappointed. Litespeed is way above the curve with this one. Ridley and Bianchi are producing some 2012-2013 bikes that look to me like they have copied Litespeeds headset and seat mast design; 2-3 years after Litespeed released them.

I'm a bit uncomfortable with the integrated...

I'm a bit uncomfortable with the integrated seat mast related to getting the right fit/height as well as the frame fitting into my standard rectangular hard bike case for traveling. Any insight would be much appreciated.

Responded on

Ok, here's the deal w/ ALL integrated seat post....

1) They take extra time and care to get the correct saddle height. Some frames/seat heads are better than others, but it's really important to er on the side of too long than too short. Remember the old saying, 'measure twice, cut once'. I actually cut mine over 1cm longer the first time and was glad I did.
2) Again, some frames/seat heads are better designed/engineered than others. My other ISP bike, Fuji SST 1.0 was a total PITA. The head unit just kept slipping and creaking. On the upside, there was a lot of adjustability in height. The Litespeed C1R, on the other hand, stays put and doesn't creak. However, you'll want to pay closer attention to cutting the seat mast down to a tighter tolerance. To adjust the height you have to use the supplied set of spacers. It's not a bad system, but not something that is as easy to adjust. [Note: Litespeed also sells a standard aero seat post conversion kit, this is a viable option for anyone who doesn't want an ISP. Just keep in mind this option will add a little weight.]
3) All ISP bikes are a challenge to fit into bike boxes. For smaller riders, it's usually not so bad. However, most folks will need to remove the saddle/head unit together and may also need to actually remove either the chainrings or cranks. I ride a Med in Litespeed C1R and that's what I do when shipping it in a Trico.
4) Now for the good stuff... The C1R is a GREAT frame! I have had many high-end bikes, including; Cervelo S3, S1, Fuji SST 1.0, SL1, Specialized Allez S-Works, Cannondale Super Six HM, Cannondale CAAD 10, Giant Advanced TCR, an assortment of european steel bikes and the list goes on... The Litespeed is every bit as fast as the S3. It has great ride qualities for an aero road bike. It absorbs road noise and bumps really well (nano carbon?), is really stable on decents and cross winds, and climbs almost as good (BB30?) as my all time fav climbing bike the C'Dale SS HM. [Note:
Can't wait to try the C'Dale EVO, it's suppose to be amazing.]

So, if you can manage the boxing issue and are patient with sizing an ISP then you will be rewarded with a fine, very unique bike. One that'll stand out in the sea of Cervelos and the other big three manufacturers. In short, go for it, you won't regret it.

do you send to Brazil one frame small size...

do you send to Brazil one frame small size and how much is the shiping and it has tax ?
thank you joao marcio

Responded on

Hey Joao,

Unfortunately we cannot ship Litespeed out of the US. Also, there is not a flat rate for international shipping. If you find a frame that we can ship to you and want to get a shipping quote just add the item(s) to your cart and fill out the shipping information.

Responded on

Nós recebemos nos EUA e enviamos para o Brasil para você:


LOGBOXUSA - seu endereço nos EUA!

Nós recebemos nos EUA  e enviamos para o Brasil para você:  <br/> <br/>  <br/> Abraço! <br/>  <br/> LOGBOXUSA - seu endereço nos EUA!
Litespeed C1 R Kitted In Blue

Litespeed C1 R Kitted In Blue

This is a sweet bike. I have only ridden the C1 which blew my mind. Lighter and Stiffer never always make bikes better.

What is the weight of the C1R frame?

What is the weight of the C1R frame?

Responded on

why spend that or more on this frame why not get a car instead.

Responded on

I have a M/L with Sram Force and FSA K-light crank. It is 16lbs with Reynolds carbon clinchers. Stiff, aero, climbs very well, no complaints at all.

I have a M/L with Sram Force and FSA K-light crank.  It is 16lbs with Reynolds carbon clinchers.  Stiff, aero, climbs very well, no complaints at all.
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