1. IT is a very delicate and stiff bicycle parts, and the exellent working quality  just as famous international brand's product accord with EN standard, 140±10g only. 

2. This item is made of  high modulus carbon fiber of Toray T700 .

monocoque construction.  

3. The black appearance can be coat based on your demand. 

4.Warranty and return policy: 2 years exchang warranty. 

5.Shipping: 

It will be shipped from China by registered air mail with safety packaging,nomally, you will receive it in 3-20 work days.