The Shimano CUES RD-U8000 and RD-U8020 are the 11-speed LINKGLIDE rear derailleurs of the CUES U8000 group. They share the same Shadow RD+ design; what differs is the cage and the cassette each one is built for, so choose the derailleur that matches your cassette.

Highlights

  • RD-U8000-GS (medium cage): for an 11-50T LINKGLIDE cassette only, 39T total capacity — the 1x11 derailleur.
  • RD-U8020-SGS (long cage): for an 11-45T LINKGLIDE cassette only, 48T total capacity — covers a 2x 46-32T crank, and also works on 1x11 with an 11-45T cassette.
  • LINKGLIDE 11-speed: pairs with the CS-LG700-11 cassette (11-45T or 11-50T) and a CN-LG500 / CN-LG700 or HG 11-speed chain.

Compatibility & fit

RD-U8000: largest sprocket 50T only, total capacity 39T. RD-U8020: largest sprocket 45T only, total capacity 48T. Both are 11-speed CUES derailleurs for LINKGLIDE cassettes, as used in the Tune Cycles CUES U8000 1x11 and 2x11 groupset kits with the SL-U8000-11R shifter.

Shimano offers a limited warranty covering defects in materials and workmanship. For warranty support, return the item to Tune Cycles.
  • RD-U8000-GS: 11-50T cassette only, 39T capacity, medium cage (1x11)
  • RD-U8020-SGS: 11-45T cassette only, 48T capacity, long cage (2x11 with 46-32T, or 1x11 with 11-45T)
  • 11-speed CUES LINKGLIDE rear derailleur with Shimano Shadow RD+
  • Chain: CN-LG500, CN-LG700 or an HG 11-speed chain
SeriesShimano CUES U8000
Speeds11 (LINKGLIDE)
RD-U8000-GSLargest sprocket 50T only, total capacity 39T
RD-U8020-SGSLargest sprocket 45T only, total capacity 48T
ChainCN-LG500 / CN-LG700 or HG 11-speed
SKU SHM-RD-U8000-GRP
Brand Shimano