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Ultra-high performance oval inner chainring, CYCLOID SHC and CAPACITY BOOSTER (big pulleys) specially designed to work with SHIMANO 12 Speed drivetrain.
CYCLOIDⅡmechanism
CYCLOIDⅡis the non-circular chainring developed uniquely by Sugino.
“Autofocus mechanism” assists your pedal stroke to remain smooth and efficient at all time so that your pedaling technique can be dramatically improved. Thus, CYCLOIDⅡis the innovative high performance chainring, totally different from any other ovals
Super Hill Climb
*Special design, ultralight non-circular chainring perfect for hill climb and long ride.
*Super small inner chainring 32T or 33T not available from SHIMANO offers great performance gain at hill climb.
*Using #804 bolts will ensure that the overall weight will be kept down.
SPECIFICATIONS
Size : 32, 34T for SHIMANO 50T / 33, 36T for SHIMANO 52T
P.C. D. : 110mm (SHIMANO 4 Bolts)
Material : CNC aluminum alloy
Color : Black / Gold
CAPACITY BOOSTER-CB12SDA
Guide pulley 12T & Tension pulley 16T
Material : CNC aluminum alloy (S3 coated)
Bearings : Ceramic (sealed)
Compatibility :
SHIMANO FC-R8100/RD-R8150 (ULTEGRA), FC-R7100/RD-R7150, RD-R7100 (105)
Chain : SHIMANO 12 speed
*Front derailleur needs adjustment.
*50-32T and 52-33T gearing setup exceeds drivetrain capacity and have slack in the chain. Sugino large pulleys perfectly fit Shimano 12-speed drivetrain, work with the standard cage on Shimano derailleur and boost derailleur capacity and shifting performance.
*You can use the original bolts that came with your SHIMANO crank or #804 for SHIMANO (sold separately).