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  • E.P.S workmanship
    2018 - 11 - 21
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    EPS stands for Expandable Polystyrene System.The EPS system consists in laminating carbon sheets around Polystyrene forms, with perfectly smooth surfaces,and leaving these forms inside the mold during the pressure phase of production.The mold expands both due to increased heat; in addition to added ...
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  • Which rim height is optimal?
    2018 - 11 - 20
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    The rim height has an effect on the aerodynamics, weight, stiffness, side wind susceptibility, sound and appearance .rim heightaerodynamicsmassrigidityCrosswind toleranceup to 30mm-++-++38mm-+-++45 / 50mm++++55 / 60mm++-++-70/80 / 90mm+++-+++-Scheibenrad++++---++++only rear wheelThe advant...
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  • What is the rider's weight limit
    2018 - 11 - 20
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    Our carbon wheels provide enough stiffness and stability to allow us to approve a max. system weight (rider + bike + equipment) of 120kg.The rim itself has to absorb the load and especially the heat that is generated by the friction between the brake pad and the brake surface when the brakes are app...
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  • What do the different carbon designs 3K matt, 3K glossy, UD matt mean?
    2018 - 11 - 29
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    There are UD,3k and 12K option when you check our carbon bike,rim.so what is the guideline？Actually,the inside layer of bike rim is always UD, only the top layer when naked can be specified to these different finish types.There is very little difference in performance between each of the d...
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  • What are the advantages of tubeless tires?
    2018 - 11 - 20
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    Tubeless tires are  driven under the tire without a hose .Compared to tires with tubeless tubeless tires without hose at low pressure drive more comfortable and they have more puncture protection. About the rolling resistance different statements are made. The total wei...
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  • Bola Pro Carbon Bike Wheel Care Tips
    2018 - 11 - 20
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    1,use the right brake pads2,Keep both the rims and the brake pads clean, do not use solvents, abrasives, or harsh chemicals3,Strip, clean, and regrets bearings every year4,Check spoke tension regularly, especially with disc brake wheels5,use only plastic tire levers when fixing flats6,Excessive...
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  • The deeper the rim, the faster the wheel?
    2018 - 11 - 20
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    In general, we could claim this statement is true and for certain cycling disciplines (TT, Tri, Track) at certain (pro) levels, this fact should have great importance during the development of the rim. However, the requirements for a fast, but all-round wheel are much more complex. Making the rim de...
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  • What are the differences between V-profile, and U-profile?
    2018 - 11 - 20
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    The aerodynamic advantage comes mainly from the rim height, the profile and the width of the rims and the number, length and shape of the spokes. Since the spokes cause a large air turbulence, it is advantageous if as few or short spokes rotate on the impeller. The solution is high profile...
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  • Spoke Hole Positioning
    2018 - 10 - 25
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    Tests to assure the spoke-hole angles have been drilled precisely at predetermined position and angle.The rim is fixed in a testing device and rotated while a gauge measures the exact position and angle of the spoke holes. Each hole must be drilled to exact specification.At Bola Wheels, we dril...
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  • What is better - Carbon wheel with aluminum or carbon brake surface?
    2018 - 11 - 20
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    The first decision must be the question aluminum carbon or full carbon.That's the hardest decision. The price difference between Alu-Carbon and Full-Carbon is not so much, the weight difference is on average 190g.Our offered carbon wheels are high-end products of the 5th...
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  • Flatness
    2018 - 10 - 25
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    Tests the “true” of the rim before laced.The rim is laid flat on a granite surface. Measurements are taken continuously around the rim between the rim and the surface. The rim should remain less than or equal to 0.4mm from the surface throughout the rotation.If a rim is not true when it comes out of...
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  • Horizontal Stiffness
    2018 - 10 - 25
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    Tests the horizontal stiffness of the rim when a weight is applied to side of a horizontal rim.    The bottom half of the wheel is secured into a fixture in a horizontal position. Pressure is then applied in a horizontal plane (load position is beside the valve) to the center of ...
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  • Vertical Stiffness
    2018 - 10 - 25
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    Tests the vertical stiffness when a load is applied to the top of a vertical rim.The bottom half of the wheel is secured into a gauge in a vertical position. Vertical pressure is then applied to the top of the rim, and downward deformation is measured.Vertical compliance is critical to rid...
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  • Vertical Destruction
    2018 - 10 - 25
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    Tests how much vertical load a rim can withstand before failure.The bottom half of the wheel is secured into a gauge in a vertical position with the valve on the side. Vertical pressure is then applied to the top of the rim, 90 degrees from valve, and pressure is increased until crack appears in rim...
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  • Spoke Hole Pull-Through
    2018 - 10 - 25
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    Tests the strength and integrity of the spoke holes.A 2mm steel line with a steel head attached is laced through a spoke hole. The end of the line is attached to a tension gauge, then it is pulled until a crack forms in the spoke hole or the line comes free completely.High numbers in this test mean ...
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  • Vertical Impact
    2018 - 10 - 25
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    Tests the pressure at which a rim will fail due to vertical impact.A weight is hung above a secured rim and dropped directly onto the top of the rim. Increasing weights are dropped until the impact meets UCI standard of 355.8 joules. A wheel passes if no damage occurs at this impact.Simulates the im...
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  • Rim Fatigue
    2018 - 10 - 25
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    Tests the fatigue life of a wheel under bumpy conditions.A wheel and tire (inflated to 120psi) are spun at 40kph by a rotating cylinder with 5mm raised “blocks” placed every 400mm. A standard load, 60kg front and 90kg rear, is placed on the wheel and kept constant throughout the test. The cylinder c...
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  • Brake Track Failure
    2018 - 10 - 25
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    Brakes are repeatedly applied and released to test the brake track durability and heat resistance.A rim is placed in the test rig and with a load of 100kg. It is then rotated constantly at 12.5kph, while the brakes are engaged and disengaged at a set pressure every 3 seconds. Rims should endure 3000...
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  • Deformation
    2018 - 10 - 25
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    Measures the expansion of the rim bead when under pressure from an inflated tire.Three separate steps: Security test: Measure the rim with an inflated tire (145psi) at three points, and let sit for 24 hours. Deflate the tire and measure again: measurements should be the same.   &...
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  • Roundness
    2018 - 10 - 25
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    Tests the rotational “roundness” of the rim without a tire.The rim is placed in testing flat, with a measuring device on the outer edge at the rails. Measurements are taken continuously as the rim rotates 360 degrees. The rim can only vary by no more than 0.4mm throughout the rotation.If a rim comes...
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  • what is the advantage of Asymmetrical profile
    2018 - 11 - 20
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    Increases the lateral rigidity of the wheel without gaining weight. The holes of the rim are off-center: this allows to close more the umbrella that form the rays. Thus the spokes ensure a better maintenance of the rim and the lateral rigidity of the wheel is increased. The risk of ta...
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  • Rim X-Ray
    2018 - 10 - 25
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    Tests for inner defects in manufacturing that would otherwise be impossible to catch.The rim is fixed to a special gauge and rotated while an X-ray machine takes images of the complete interior of the carbon walls. The images are reviewed to look for miniscule cracks or imperfections. To maximize co...
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  • You need Tubular，Clincher or Tubeless carbon bike rim?
    2018 - 11 - 26
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    When you buy the carbon bike rim,you need to decide the tire type,if MTB,now almost tubeless ready,but for 700c rim,there are tubular,clincher and tubeless option.The choice of materials largely dictates the final weight, suppleness, and durability of any tire. Lightweight materials typically y...
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  • When riding the carbon bike against the wind, how to save energy？
    2019 - 02 - 09
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    When riding a carbon bicycle, we often encounter the situation of adverse wind, which greatly hinders the ride. So how can we save energy when riding a carbon bicycle against the wind? What skills do you have to ride a carbon bicycle against the wind or uphill?When riding a carbon bicycle on a slope...
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  • An article on the skills of carbon bike wrestling. You have to learn how to wrestle
    2019 - 02 - 08
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    Come out and ride the carbon bike, always fall! Since you are going to fall, it's better to be prepared for it! Carbon bicycle wrestling is generally divided into active wrestling and accidental wrestling. Active wrestling is a kind of wrestling which is caused consciously according to rider'...
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  • Warm-up is indispensable for good carbon bike cycling
    2019 - 02 - 07
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    Be sure to warm up and stretch every inch of your body before the carbon bike cycling. Of course, riding warm-up is not only fixed in front of the stretch, but also important for relaxed static stretching during and after the carbon bicycle riding. The best warm-up time is to start one hour before t...
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  • Mountain bikes and road bikes have their own risks. Do you want to know what they are?
    2019 - 02 - 04
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    Carbon mountain bicycle and carbon road bicycle have their own risks, but the risk forms are different. The risk of mountain bikes mainly comes from the changeable terrain; the risk of road bikes mainly comes from speed.Mountain bikes have different technical thresholds according to terrain requirem...
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  • Learn the XC method of mountain bike to play happily!
    2019 - 01 - 29
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    Many people will choose XC type car as their first choice when they first start, because the tires are wider and the body has shock absorbers, which have better impact resistance and can meet the basic needs of road conditions.What is an XC bicycle? XC is actually called Cross Country. The positioni...
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  • The Knack of Bola carbon bike wheel building-the Importance of Spoke Tension
    2018 - 12 - 14
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    Building a reliable carbon wheelset is actually an art.For most people, the carbon bike wheel building seems rather complicated. You need to order a dozen suitable spokes, otherwise the yaw will be serious. You don't need to string all the spokes at once, you only need one root to operate.&...
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  • How to adjust the step frequency to get the best energy output power ratio during the carbon bike ri
    2018 - 12 - 13
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    How to adjust the step frequency to get the best energy output power ratio during the carbon bike riding?  The tread frequency is the number of times a foot turns in a minute. That is, by increasing their frequency ability, to save limited energy and lactic acid tolerance in muscle. W...
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  • Distinguish clearly! clincher, tubular, tubeless ready carbon bike wheel
    2018 - 12 - 12
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    Many riders are not very clear about the concepts of clincher, tubular, and tubeless ready carbon wheelsets. Now let's briefly talk about their characteristics and how to distinguish them.I. Clincher carbon Wheel SetThe figure above shows the cross section of the clincher ring, which is characte...
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  • What is the real value of carbon fiber carbon wheelsets?
    2018 - 12 - 11
    0
    In the TV broadcast of the Grand Tournament, you can see that drivers use carbon wheelsets, carbon bike wheels, carbon bicycle wheels and carbon fiber wheelsets - Racing 0 and Shamal and other top tube tire aluminum wheels, although sometimes found, but has been extremely rare. In the civilian circl...
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  • Terminology of carbon road bicycle racing
    2018 - 12 - 10
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    Terminology of carbon road bicycle racing  Here are some common terms used in carbon road bicycle racing, hoping to help you better watch the race. All-RounderGood drivers in climbing, sprinting and timing events. Generally speaking, they rank higher than other drivers who specia...
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  • Posture is power! Teach you to keep more than 25 yards easily during carbon bike cycling
    2018 - 12 - 07
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    Posture is power! Teach you to keep more than 25 yards easily during carbon bike cycling  How to ride at a speed of 25 KM (or more) per hour without brute force and with ease and skill? I don't know if you are interested in looking down. Maybe N people will jump out and say, 25 KM...
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  • The carbon bicycle needs cleaning and maintenance! Do you know these processes?
    2018 - 12 - 06
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    The carbon bicycle needs cleaning and maintenance! Do you know these processes?  When we decide to do a carbon bicycle maintenance, the first thing to do is to clean the carbon bicycle. This step is an indispensable step for subsequent maintenance with half the effort.  1. carbon...
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  • Should you use your nose or mouth to breath when ride the carbon wheel?
    2018 - 12 - 05
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    Should you use your nose or mouth to breath when ride the carbon wheel? When riding the carbon bike wheel, there is a problem that bothers many riders: sometimes even if not tired, they can't breathe and their feet can't exert themselves. Why in the end? In fact, this is ...
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  • How to choose a carbon bicycle that suits you?
    2018 - 12 - 04
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    How to choose a carbon bicycle that suits you?  Cycling is a kind of outdoor activity beneficial to the body and mind. More and more people are in love with bicycle travel even race. When traveling or racing by bicycle, it is most important to have a light, sensitive and rel...
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  • 7 tips to let you ride even more quickly! Both road and mountain carbon bike are applicable.
    2018 - 12 - 03
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    7 tips to let you ride even more quickly! Both road and mountain carbon bike are applicable. 1. Keep your mount clean and clean There is no doubt that the more beautiful the bicycle, the more expensive the cleaner the bicycle, the faster the bicycle, whether mountain bike or road bike...
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