Best triathlon bike 2021: become an Ironman with the best tri and time trial bikes

It's all about reducing drag so you can shave a second off your Hour Record PB

best triathlon bike for beginners best tt bike best time trial bike
(Image credit: BMC)

Triathlons are not easy but they feel at least a little bit less demanding riding the best triathlon bike. The tri bikes on this list go above and beyond to provide you the best aerodynamic advantage you can have in the lightest possible package possible. Ready to take on the Ironman challenge? Get the best triathlon bike and you are ready for the training.

Buying a triathlon or time trial bike can be more daunting than buying the best road bike, for example. If you haven't got a lot of experience in bike technology, it's easy to get lost in the details and get super confused by the different groupsets, chainsets and wheelsets. We will try to make this all clearer for you.

Triathlons come in many shapes and sizes and if you are at the beginning of your triathlon journey, you might want to consider signing up for a triathlon sportive as opposed to a race. A sportive is a non-competitive version of triathlon, so instead of worrying about having been disqualified for going slower than the cut-off time, you can concentrate on the experience and enjoy the ride (literally).

The best triathlon bikes don't come easy but you might be able to buy one for cheaper on Black Friday or on Cyber Monday, possibly. There is also the Wiggle Black Friday sale: there are savings to be made there already.

Best triathlon bike

Minimising drag is the main aim when it comes to tt bikes

(Image credit: Cervelo)

How to choose the best triathlon bike

Assuming you won't want to break the bank when investing in a new triathlon bike, there will some compromises you will have to make when picking a tt bike.

One of the main thing you will notice bike description mention is the type of groupset they use. A groupset is all the parts on the bike that make it move and stop, so all the equipment that transforms the kinetic energy generated by your legs and body to forward momentum (plus the brakes). This includes the crankset, the bracket, brakes, shifters and derailleurs, but even the chain and rear cassette too.

Groupsets you will see most often on time trial bikes are the Shimano 105, the Shimano Ultegra and the Shimano Dura-Ace. Of the three, the 105 is the most 'basic' set and the Dura-Ace is the most advanced. The 'basic' is in brackets because the 105 is by no means a cheap set and as with all technology, advancements from higher end models cascade down to later year entry-level models, meaning a new Shimano 105 is probably more advanced than a Shimano Ultegra from a few years ago.

Another key factor to take into account is the frame. Many triathlon bikes have aero frames, where 'aero' stands for aerodynamic. This frame-type comes from the world of time trials, where they came up with the light but rigid frame composition. In time trial, every gram matters, and as technology advanced and production costs dropped, areo frames made their way from track courses into the world of triathlon, too, becoming a an everyday sight as opposed to being a toy of the top 1% of triathletes.

The wheelset is also crucial when deciding on a setup. These are made out of many different materials, but you would like something light, like carbon, to make the bike even lighter altogether.

Although all the bikes on the below list come with aero bars, there is also an option to buy a road bike and attach an aerobar to it later, when needed. That being said, many of the bikes on this list are easy to dismantle so they can be converted into road bikes easily, relatively speaking.

The best triathlon bikes

best triathlon bike: Canyon Speedmax CF 8.0

(Image credit: Canyon)

1. Canyon Speedmax CF 8.0

A super light speedster coupled with a great groupset

Groupset: Shimano Ultegra R8000
Wheelset: Mavic Carbon
Frame: Canyon Speedmax CF Carbon
Fork: Canyon F39 CF Carbon
Weight: 8.6 kg
Reasons to buy
+Fantastic looks+Extremely light+Great groupset combination
Reasons to avoid
-Looks might be intimidating for beginners

Canyon is famous for providing great quality bikes for a very reasonable price, and this is true to the Speedmax CF 8.0 as well.

The full carbon construction is as light as a feather, the medium-sized frame weighing only 8.6 kilos. The setup comes complete with a Shimano Ultegra groupset and Mavic Carbon wheels.

Canyon is so confident that you'll like the bike that they offer a 6-year guarantee on it. Also, Canyons own Bike Guard Box gets the bike to you in a conditions that it's almost ready to ride, straight out of the box.

Every detail has been taken into account, including the type of saddle used for the Speedmax CF 8.0, to maximise comfort as well as performance. The Fizik Mistica is a triathlon-optimised saddle with a shorter and wider nose and non-slip material on the top, you so you can ride in comfort for longer. Relatively speaking, of course.

Canyon Speedmax CF 8.0 Di2 review (early verdict): fiercely fast triathlon bike with a few surprisingly casual features

Best triathlon bike: Ribble Ultra Tri Shimano 105

(Image credit: Ribble)

2. Ribble Ultra Tri Shimano 105

Pro-grade frame in its full carbon glory

Groupset: Shimano 105 R7000 TT 11 Speed
Wheelset: Mavic Aksium Clincher
Frame: Toray T800 / T1000 Full Carbon Monocoque
Fork: Ultra Tri Full Carbon Fibre Monocoque
Reasons to buy
+Way cheaper than the Canyon Speedmax+0% APR finance available
Reasons to avoid
-Watch out for side wind 

• Buy the Ultra Tri Shimano 105 directly from Ribble

Using the same frame as the Ribble Ultra TT, a bike raced by pro-Ribble riders, the Ribble Ultra Tri is engineered to be fast. Really fast.

The full carbon Ultra frameset has been perfected by Ribble to provide the least amount of aerodynamic friction possible. This feature will come handy when riding the 56-mile cycling part of the Ironman 70.3 in headwind. You don't need anything to  hold you back more than absolutely necessary.

The groupset on the Ultra Tri consists of mainly Shimano 105 R7000 pieces, apart from the brakes, it being TRP T860 alloy set. The cockpit is Ribble's own with both bars and the stem designed for the Ribble Ultra Tri. The wheelset consists of Mavic Aksium Clincher wheels and Continental Ultra Sport 2 tyres, with an extra deep profile.

Given the thick profile and all the additional storage units on the frame, the Ribble Ultra Tri is slightly susceptible to side wind, but since the bike is very light, it won't affect your riding experience all that much, especially in aggressive riding positions.

best triathlon bike: Cervelo P2

(Image credit: Cervelo)

3. Cervelo P2

Affordable tt bike from an Ironman favourite brand

Groupset: Shimano 105 R7000
Wheelset: Shimano RS100
Frame: Cervélo All-Carbon
Fork: P2 Fork
Reasons to buy
+Airier design+All carbon frame and fork+Seat tube cutout construction reduces drag

• Buy the Cervelo P2 directly from Cervelo

The all-carbon P2 comes with a Shimano 105 R7000 groupset, an excellent mix for all the price conscious triathletes out there. Cervelo is the most popular bike brand among Ironman Kona competitors, so you can count on them knowing what makes a good triathlon bike.

The P2's sleeker design reduces drag in side-wind conditions, without compromising on the stiffness you'd expect from an aero frame. The extended seat tube cutout, for example, follows the curve of the rear wheel to improve aerodynamic performance.

Cervelo found a way to make the P2 less like a TT bike and more of a bike you can just jump on to cycle for a few hours. Get a set of Shimano 105 R7000 Carbon Pedals and you are ready to go.

best triathlon bike: Felt IA Advanced 105 2020

(Image credit: felt)

4. Felt IA | Advanced, Rim Brake | 105 | 2020

A multiple Ironman Kona winner

Groupset: Shimano 105 R7000
Wheelset: Devox 30A
Frame: Felt Integrated Aero Tri UHC Advanced + TeXtreme carbon
Fork: Felt IA UHC Advanced carbon monocoque
Weight: 9.49 kg (medium frame)
Reasons to buy
+BTS storage pack included+Textreme frameset for a reasonable price
Reasons to avoid
-Slightly heavier than the top bikes on this list

• Buy the IA | Advanced, Rim Brake | 105 | 2020 directly from Felt

The Felt IA Series won the Ironman World Championship five times out of the last six years, which says a lot about the performance of this series. The IA | Advanced, Rim Brake is your entry to this very prestigious family.

The Felt IA | Advanced, Rim Brake | 105 | 2020 uses a Shimano 105 R7000 groupset, coupled with an all-carbon aero frame. For the 2020 year, Felt introduced the the lighter and stronger Textreme frameset to the entry level model of the series, to everyone's delight.

The bike is slightly heavier than the Canyon and Boardman entries on this list, but still comes under 10kg, which, considering all the tech that's involved here, is amazing.

All the better, Felt also included A BTS storage pack too, so you can store your wheel fixing accessorises or food/drinks in an aerodynamic compartment as well.

best triathlon bike: BMC Timemachine 02 Two 2020

(Image credit: BMC)

5. BMC Timemachine 02 Two 2020

Gotta go fast on this Swiss-designed TT machine

Groupset: Shimano 105
Wheelset: Shimano WH-RS 010
Frame: Timemachine 02, PF86 bottom bracket
Fork: Aero Premium Carbon
Weight: 9.18 kg
Reasons to buy
+Integrated fuelling box+Shimano 105 groupset works great+Hidden brake booster at rear+Dual-mount seatpost
Reasons to avoid
-Full-aero cockpit needs some getting used to for beginners-No shifters on drop bar

The BMC Timemachine 02 Two is a very competent tri bike. The always reliable Shimano 105 groupset does the work just fine when it comes to commandeering the derailleur in between the 22 available speed options. Better still, the Shimano Dura Ace Barend shifters complement the groupset beautifully and makes shifting gears in aero position way easier.

The Timemachine 02 frame is hyper-aero and slices through the air: everything is fat and flat to reduce drag on the road. The dual-mount seatpost is a nice touch and lets riders customize their riding position in a variety of ways.

Feel free to go fast on the BMC Timemachine 02 Two: the hidden brake booster tech "increases the brake-lever-pull to caliper-free-stroke ratio", as BMC puts it. The same system allows for the complete disconnection of the cockpit (when paired with electronic shifting options) for travel purposes too.

I wouldn't put the BMC Timemachine 02 Two in the beginner tri bike category as it is not only it has a rigid carbon setup and therefore provides a firmer ride, but it also mostly caters for more experienced tri riders with barend shifters and stuff like the highly customisable seat post.