Classic Bikes Frameset
Buying advice for: Gravel: Frameset
Frame material
Gravel bike framesets can be made of different materials. Aluminium frames are light, stiff and offer good durability. They are often a cheaper option compared to other materials. However, aluminium frames are less effective at absorbing vibrations on uneven surfaces than other materials. Steel frames are robust, comfortable and offer a smooth ride due to good damping properties. They are often slightly heavier than aluminium frames, but many riders appreciate the comfortable ride feel of steel frames. Carbon fibre is lightweight and offers high stiffness, which enables efficient energy transfer. Carbon fibre frames can be designed to absorb vibrations and increase riding comfort. However, they are often more expensive than aluminium or steel frames and can be more susceptible to damage from impacts. Titanium frames combine lightness, durability and corrosion resistance. They offer a smooth ride similar to steel frames, but with a lower weight. However, titanium frames tend to be very expensive and are often considered a high-end option for enthusiasts.
Frame types
The gravel bike frame can come in many different flavours. The traditional gravel bike is often equipped with a classic frame and therefore has a classic geometry, similar to that of road bikes, with a steeper seat angle and a shorter wheelbase. They offer a sporty riding position and are well suited for fast rides on well-paved roads. Adventure or touring frames have a more relaxed geometry with a slacker seat angle and a longer wheelbase. They offer a more comfortable riding position and are better suited to long days in the saddle and bikepacking adventures. And then there is the gravel or all-round frame. These frames combine features of traditional and adventure/touring frames to provide a versatile platform for different riding styles and conditions. They often have a balanced geometry that is suitable for both fast rides and long adventures. Choosing the right frameset depends on personal preference, intended use and budget. It is advisable to compare different options and, if necessary, seek specialist advice in a bike shop.
Geometry
The geometry of a gravel bike frameset is crucial for the bike's handling, comfort and performance. The seat angle of a gravel frame determines the position of the saddle relative to the bottom bracket. A steeper seat angle can improve power transfer and increase pedalling efficiency, while a slacker seat angle offers more comfort on long rides. The wheelbase also plays a decisive role in a gravel frameset. This is measured from the centre of the bottom bracket to the centre of the rear axle and influences the stability and handling of the bike. A longer wheelbase offers more stability at high speeds and on uneven terrain, while a shorter wheelbase enables more agile handling. There are also different steering angles for the Gravel frameset. A slacker steering angle provides more stability at high speeds and on uneven terrain, while a steeper steering angle offers more agile handling.
Size
The rider's height is an important factor when selecting the frame size. The rider's stride length or inside leg length is also important. This measurement determines how much overhang there should be between the top tube of the frame and the rider's crotch when seated on the bike. Adequate overhang ensures a comfortable and safe riding position. The rider's riding style and preferences also play a role in frame size selection. Some riders prefer a longer and lower frame for a sportier and more aerodynamic position, while others prefer a shorter and upright frame for more comfort and control.