What is a double butted frame?
Double butted tubes are thicker at both ends, the downtube for example where additional strength is required at the bottom bracket junction and headtube. Triple butted tubes serve the same purpose as double butted tubes but further reduce weight in the center.
Why is a double butted frame good?
There are two methods used to butt a frame tube. Double Butting—As the tube is shaped, extra material is allowed internally at each end of the tube. By increasing these areas of the tube, the overall tube wall thickness can be reduced, thus saving weight.
What is double butted chromoly?
Double butted means the tubes are thicker at the ends where they are joined so they can be light an strong.
Is steel or aluminum better for bikes?
Strength. When it comes to strength, steel-framed bikes are the indisputable winner. Steel is significantly stronger and more durable than its aluminum counterpart, making it an excellent choice for mountain bikes. Steel-framed bikes are able to absorb more blows with suffering damage.
Do chromoly bikes rust?
With its resistance to extreme temperatures, chromoly steel needs a special welding technique when building frames or joints. Chromoly steel is also treated before and after manufacturing to increase the natural resistance to corrosion, dramatically lessening the chance of rust.
How long do chromoly bikes last?
Chromoly frames are typically overdesigned well above the endurance (fatigue) limit of 0.54 of tensile strength. This means if the welds are properly done, you can expect what we call ‘infinite life’.
What’s the difference between a butted and double butted frame?
The term butted refers to the thickness of tube wall. If tubes have only one dimension along them, we refer to the frame as being butted, if it they have two dimensions (being thicker at the tube ends and thinner along the middle) then we are talking about double butted frames.
Are there other types of aluminum bike frames?
Even scandium frames were actually aluminum frames alloyed with a small amount of scandium, and still remained too expensive. There are also other types of aluminum, such as 7075 and 2014 which are very strong, but almost impossible to weld.
What does tapered mean on a bicycle frame?
Tapered refers to the conical shape of head tube (the part of the frame housing the fork’s steering tube). To put it as simply as possible, the top of the head tube has a smaller diameter than its bottom. Thus, manufacturers obtain a higher resistance in this area of the frame, a higher rigidity and a better stability of the bicycle.
Where did the boneshaker track bike get its name?
The 51st bike model released since our inception in 2014, the Boneshaker is blast from the past with inspiration from modern street art. The name derives from one of the first renditions of the bicycle itself – but equally applies to the bone shattering, modern day track bike criteriums.