Designed by our French Engineers NOVA CARBONE Ceramic rear derailleur improves the fluidity of your transmission, enhance efficiency to satisfy the most demanding. Made in very high-end materials: an ultra-light carbon fiber and ceramic bearings. Two Oversized aluminum wheels, which coupled with ceramic bearings decrease the chain winding angle with minimal friction ++Produk Toko Bike.Bang Jaminan 100% Apabila Kualitas Produk tidak ori atau tidak sesuai gambar. ++Produk dengan ukuran tertentu apabila tidak cocok dapat di retur / barang kembali 21879