Carbon Vs Aluminum Bike Frames

Carbon fiber frames are lighter than aluminum frames because the material is less dense.

Carbon vs aluminum bike frames.

Good aluminum frame road bikes can be as lightweight as cheap carbon frame bikes. Conversely carbon possesses the longest fatigue life. The typical aluminum frame possesses a life expectancy of five to 10 years. Aluminum frames possess the shortest fatigue life of any material used to manufacture bicycle frames.

It s worth noting that not all carbon fibre is equal and it s possible that a low grade carbon frame could weigh more than a high end aluminum frame. The transition smuggler aluminum frame sells for 1999 while the carbon version sells for 2999 a 1000 difference. The main disadvantage of aluminum frame is harsher ride stiffness and also being the manufacturer is restricted on being able to control the frame flex in comparison to carbon. A carbon frame will almost always be lighter than an aluminum equivalent.

Steel aluminium titanium and carbon fibre and the material can influence the ride and purpose of the bike so it s good to know the key differences before you make a decision. That s a 1300 difference. Carbon frames are usually a bit lighter than aluminum up to a pound for mountain frames and up to a half pound on road frames. Sometimes the choice can come down to the material the bicycle frame is made from.

Carbon however rules supreme in this area. For high end road and racing bikes aluminum frames are a strong option when weight influences performance. A carbon fibre frame will almost always be lighter than an aluminium equivalent and you ll only find carbon fibre bikes in the pro peloton in part because of the weight benefits. Aluminium was the leader when it came to frame material before carbon become more accessible.

The density of modern carbon fiber is about 1 9 g cm 3 compared to aluminum which has a density of about 2 3 g cm 3. It s possible to build very light and capable bikes out of either aluminum or carbon. When it comes to the strength to weight ratio few materials can come close to carbon fiber. It s a relatively light and stiff material and generally cheaper to produce than carbon.

In many cases bike brands will offer both aluminum and carbon frame options to fit a. That begs the obvious question is a 1 5 pound weight saving worth the extra cash. The aluminum santa cruz bronson frame sells for 1999 while the carbon cc version sells for 3299. Aluminum mountain bike frames weigh around 1 pound more than comparable carbon frames.