- LIGHT ALLOY RIMS BIKE FOR FREE
- LIGHT ALLOY RIMS BIKE PATCH
- LIGHT ALLOY RIMS BIKE FULL
- LIGHT ALLOY RIMS BIKE PRO
- LIGHT ALLOY RIMS BIKE CRACK
A heavily crashed carbon wheel will be somewhat of an unknown quantity with its potential damage hidden between layers of carbon, invisible to the human eye, where-as an alloy rim is easier to visually inspect.īreak a spoke and an alloy rim will bend.
LIGHT ALLOY RIMS BIKE CRACK
Unlike carbon rims which are more likely to crack (think rim-strike having ridden over a deep pot-hole), aluminium rims are more likely to dent, remaining rideable until a replacement can be sought.
A cross-section of the carbon laminated clinchers from Dura C24, C35, and C50 wheelsets.
Wheels made from carbon fibre with an alloy braking surface (Shimano C24 for instance) tend to hold up better to delamination, but the alloy and carbon are still glued together, so are still susceptible to risk. On Marmot Tours cycling holidays we’ve personally experienced wheels delaminating whilst descending at speed and it’s one of the most dangerous situations a rider can find themselves in. Delamination is the ‘death of a carbon wheel’ and is essentially caused by the glues between the layers of carbon heating to the point of failure, as heat buildup caused by the friction of pads against the rim spreads throughout the wheel. Having mentioned excessive braking and heat buildup, we have to mention delamination. Improvements have been made with carbon, ceramic and organic pad compounds, some only useable on specific rims, but a decent aluminium rim with a standard rubber brake block will always out-perform it’s carbon rival. Modern engineering techniques have helped lesson this issue, but on long, sustained, mountain descents where the rider is likely to be unfamiliar with the road and therefore more likely to be ‘riding’ the brakes, combined with braking heavily from speed on the way into corners, we are still asking a lot of our rims. Delaminated carbon rim Cons of Carbon Wheels:Įarly carbon fibre wheels were famous for their lack of braking response, owing mostly to excessive heat build-up as the pads try to shed water from the rim.
Gone are the days of 19mm tyres at 120psi!įor more info on rolling resistance click here for a comprehensive list of tyre comparisons.
LIGHT ALLOY RIMS BIKE PATCH
You’d be forgiven for thinking that a wider tyre at a lower pressure would mean increased rolling resistance, but it is, in fact, all to do with the shape of the contact patch on the road. A wider rim gives the tyre more support than a narrower rim, improving the feel of the ride and offering more grip.
LIGHT ALLOY RIMS BIKE PRO
Recent years have seen the introduction of wider tyres in the pro peloton, with riders often choosing a minimum tyre size of 25mm, and many on 28mm as a standard.
LIGHT ALLOY RIMS BIKE FOR FREE
Whether road racing, time trialling or if you just want to go faster for free on the flat, investing in some aero wheels will reward you with some free speed, and even more, the faster you go.Ī good quality carbon wheel will be laterally much stiffer than its aluminium counterpart – perfect for the sprinters amongst us who want every last watt of power transferring to the road. There have been hundreds of wind tunnel tests performed and reams of data produced. The lightest form a rim can take is in tubular form, requiring the rider to glue his/her tyre to the rim. Lightweight sell a pair that weigh a total of 940g, for both wheels!Īs previously mentioned, carbon allows us to create deeper, more complex shapes, perfect for aerodynamic bicycle rims, yielding considerable advantages over the traditional box-section shaped alloy rim. Carbon rims make for a great hill-climbing wheel. Owing to its structure, carbon fibre cloth allows us to sculpt and shape complex 3D forms such as bicycle rims, which, made out of aluminium for instance, would be exceptionally heavy. We all see the pros riding their super-lightweight carbon bikes up and down the mountain passes at incredible speeds, but are carbon wheels the right choice for us mere-mortals? Lightweight wheels – are they necessary? Pros of Carbon Wheels: Are carbon wheels really the right choice? In this article we’re going to focus purely on wheels, and the standard clincher type found on most road bikes. Here at Marmot Tours we’ve seen thousands upon thousands of bikes on our trips over the years and have picked up a thing or two about what does or doesn’t work on mountain roads, and why.
LIGHT ALLOY RIMS BIKE FULL
With summer on the horizon and our training plans in full swing (well, for some of us anyway!), thoughts naturally turn to bikes and equipment choice.
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