How are carbon road bikes made? Raw carbon fibre due to be used for sports equipment (‘Pitch’ type carbon fibre is used elsewhere) is usually made from polyacrylanitrile (PAN) fibre which is heat treated to take on the shape of long and thin fibres. The greater the treatment, the stronger the carbon will be – stronger carbon requires the use of less material which drops the weight. Though bike brands can use any description they like, the Japan Carbon Fiber Manufacturers Association (JCMA) grades carbon from ‘Low Modulus’ to ‘Ultra-High Modulus’. The level of carbon awarded is based upon the Tensile elastic modulus (stiffness) and Tensile strength (durability). Material: Japan Toray T1000 Carbon material Frame is made of Japan high quality carbon fiber, by latest EPS foaming technology, inner tube clean and tension concentration, low air resistance design. Size：27.5er / 29er （15 / 17 / 19） Brake system： DISC Brake BB: BB92 Axle frame：148*12 Boost Direct mount front deraillure Support mechanical and DI2 electrical shifting system. Carbon seat post in waterdrop shape design to reduce air resistance. 2 years warranty Weight:Frame：2450g ( 27.5er 17Size) Size:148*12Disc Frame27.5er / 29er 2.35-3.2Tire Parts include：1 Frame, 1 Seat Post Clamp, 1 Headset, 1pcs Rod Complete bike is not included in the price Buyer please read : We accept payment via Escrow, Alipay, Western Union or PAYPAL. Pease contact us for instructions if you want to pay in other ways or want to buy more quantity. Full payment must be made within 5 days of placing your order. About Shipping Normally, we ship the goods via EMS or our own forwarder by courier. If clients want the goods to be shipped by DHL, FedEx or TNT, Please contact us in advance. Warranty: All products we sell in our store are in good quality and under strict quality test before shipment. We will try our best to avoid any quality problem. We promise warranty for quality in 24 months. We will repair or replace it free of charge if defective part. was found in 3 months. You will only need to pay the shipping cost if the defects found after 3 months and. This warranty is non-transferable and valid to the original purchaser of the product only. The following improper use will void your warranty. 1 Crashes and accidents. 2 Misuse (off-road riding, jumping, trick riding, Cyclocross, etc). 3 Modification of wheels or Improper assembly. 4 Tire pressure exceeding Road Wheels 100-125psi. MTB Wheels 65-85psi 5 Normal wear and tear. 6 Improper follow-up maintenance or maintenance by an unauthorized technician. 7 Installation of parts or accessories not originally intended for, or not compatible with the rims as sold. 8 Damage or deterioration on the surface finish or appearance which has no effect on the function. 9 Damages caused by natural disaster. 
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