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IRONMAN Koa 100, Mens Road Bike

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£169.97 (Save 48%)
FREE SHIPPING (2-3 Working Days)

Product Description


Typical High Street Price £ 329.99

IRONMAN - ANYTHING IS POSSIBLE - the ideal choice for any budding cyclist looking to go a little faster!

The IRONMAN Koa 100 is a great road bike for those looking for a first road bike, fitness bike and fast commute bike.

The Koa 100 benefits from a lightweight alloy frame which makes for a balanced and dynamic racing bike with an extremely efficient ride position that remains comfortable.

We kitted the Koa 100 out with Shimano 14 speed transmission with bar mounted "Butterfly" shifters.

Drive train is 2x7 gear setup is coupled with a compact chainset featuring chainrings of 48/38 teeth so this gearing offers a number of different ratios to handle the ups and downs!!

Strong 700c alloy double walled rims benefiting from computer machined braking surface for smoother more efficient braking.

Fast rolling, low resistant 25C road bike tyres are fitted on strong double walled rims with computer machined braking surface for assured braking.  Alloy hubs with quick release on front.

Powerful side pull alloy road caliper brakes with alloy brake levers.

The IRONMAN Koa 100 road bike is a very capable sports bike great for fitness or leisure. 

53cm frame is suitable for inside leg range of 31" to 35”

56cm frame is suitable for inside leg range of 32” to 36”

59cm frame is suitable for inside leg range of 33" to 37"

 Weight of complete bike is approximately 12.96 kgs


As the history goes; In 1978, U.S. Naval Commander John Collins and his wife Judy issued a challenge. They proposed combining Oahu’s 2.4 mile swim race, 112 mile bike race, and 26.2 mile marathon. On February 18, 1978 fifteen competitors, including Collins, traveled to Waikiki to take on the first-ever IRONMAN challenge.  

If you're looking for a stylish, affordable modern lightweight bike then look no further than this exclusive range of IRONMAN bikes. With a wide choice of versatile Sport Hybrids and Road bikes from 16 inch wheel to 700c there is a model for everyone. Ironman bikes come well-equipped and are built to last using quality components such as Shimano gears, aluminium frames and lightweight components. Ironman offer a comprehensive line of innovative sports bikes ideal for 1st time triathletes, as part of a fitness push or as a fast commute bike.  Attention to detail throughout and built on the foundation of a commitment to creating great bikes we’re confident that you’ll experience that devotion to cycling every time you ride your IRONMAN bike.

Swim 2.4 miles, bike 112 miles, run 26.2 miles - BRAG FOR THE REST OF YOUR LIFE.  Anything is possible!


We're a family owned UK online bike shop set up to promote cycling by providing products that are fit for purpose. You will find useful information to help explain the features and benefits without using industry jargon. We hope that by helping you buy the right bike you will enjoy cycling and continue to cycle.

Our aim is to be as competitive as possible, but without affecting our ability to offer high levels of customer servcie and technical support.

All products meet UK standards and are set up with UK braking, not European bikes set up for Europe!! Click Here

Delivery Options

We understand that life can be pretty hectic and we have a number of timed deliveries now available to give your more flexibility. Click Here

Home Bike Build

We have teamed up with Cycle Assemby Network to provide a superb option of having your bike assembled at home at a convinient time. Hyperlink to page with details and phone number. Click Here


All products are offered with a full manufacturers guaranttee and are from genuine sources. Bikes must be assembled by a competent trained bike mechanic. Click Here

Build Level

Most bikes come approximately 90% built with brakes and gears adjusted. Click Here

Technical Specification

Lightweight 6061 grade alloy road frame - 53cm, 56cm and 59cm
700C steel, straight bladed road bike fork, threadless
Headset & BB set:
Steel full ball bearing headset and cartridge BB (important)
Handlebar & Stem:
410mm wide bar with alloy ahead stem - 90mm extension on 53cm and 100mm on 56cm and 59cm
Cushioned bar tape
Alloy road calipers and alloy levers
Shimano A050 butterfly shifters with A050 front and rear mechs
Chain set & Pedals :
Chainset 48/38T with 170mm alloy crank. PVC pedals with toe clips
700C alloy double walled rims, with 36 spokes and CNC braking surface. Alloy hubs and quick release front. 25C slick road tyres.
Saddle & Post:
IronMan padded sports saddle with 300mm steel seat post
3 x 10mm stem spacers for bar adjustment

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