LTWOO A7 10 Speed Rear Derailleur for MTB compatible DEORE

SGS=long cage for 50T Cassette, recommended for 1x10s use GS= medium cage for 40T Cassette, recommended for 2x10s or 3x10s SS=short cage for 34T Cassette, recommended 16-inch, 20-inch folding bike Rear Derailleur Mega Sprlockets: 42T Shadow RD with slant design 295gAbout transportation and tax Transportation is divided into e-commerce parcels and commercial express E-commerce small packages can only transport goods within 2kg For example: AliExpress Standard Shipping / China Post Registered Air Mail / e-Packet / Singapore Post are all e-commerce packages. 95% of e-commerce packages are duty-free transportation. Commercial express can transport more than 2kg of goods, the time is very fast Such as: AliExpress Standard Shipping / DHL / UPS / FedEx are all commercial express. Commercial express is 100% formal customs declaration, all need to pay tariffs, tariffs are borne by the buyer. If you choose commercial express delivery, we will issue a low-value invoice for you, the invoice will be posted on the box, and we will try our best to make you pay less customs duties.