SUPER SMALL INNER CHAINRING 32T and 33T
Rear derailleur
CAPACITY BOOSTER is required. (Sold separately).
*When chain is in inner/top where the cage is in the most-backward position (for RD-R9250, in the 3rd cog from the top), if the chain has a slack or hits the rear derailleur, loosen the end adjust bolt to eliminate the problems.
Front derailleur
The gearing setup numerically exceeds front derailleur capacity,
CY4-SHC is designed corresponding to that and shifting performance maintained for all gearing setup
CAPACITY BOOSTER is required. (Sold separately).
*When chain is in inner/top where the cage is in the most-backward position (for RD-R9250, in the 3rd cog from the top), if the chain has a slack or hits the rear derailleur, loosen the end adjust bolt to eliminate the problems.
Front derailleur
The gearing setup numerically exceeds front derailleur capacity,
CY4-SHC is designed corresponding to that and shifting performance maintained for all gearing setup
SPECIAL TOOTH PROFILE
The special tooth profile provides perfect shifting and prevents chain-drop.
AUTOFOCUS MECHANISM
When the force is applied to the pedal, the chain moves outward. You feel the ring increases the diameter as the chain runs higher on the ring. As amount of moving will fluctuate by the force applied, it maximizes the benefits of non-circular ring, and assists your pedal stroke to remain efficient.
*there is no need of pedal stroke analysis to identify peak point or adjustment of mounting position.
*there is no need of pedal stroke analysis to identify peak point or adjustment of mounting position.
Other recommended products
#804 FOR SHIMANO
Sales price : JPY 2,900
Fixing Bolt set for SHIMANO CRANK, High-strength aluminum alloy torx bolts. Ultra-light alloy bolts can reduce the overall weight of your bike.
Ultra-high performance inner chainring, with superior functionality to any other ovals, specially designed to work with SHIMANO 50T or 52T on SHIMANO 12-Speed crankset.
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
"What is Autofocus mechanism?"
When the forth is applied to the pedal, the chain moves outward. You feel the ring increases the diameter as the chain runs higher on the ring. As amount of moving will fluctuate by the force applied, it maximizes the benefits of non-circular ring, and assists your pedal stroke to remain efficient.
*there is no need of pedal stroke analysis to identify peak point or adjustment of mounting position.
*As positional relation with outer ring is fixed, excellent shifting is ensured.
*Special tooth profile prevents chain-drop.
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.
Material : CNC aluminum alloy
Compatibility :
SHIMANO FC-R9200 (DURA-ACE)
FC-R8100 (ULTEGRA)
FC-R7100 (105)
Chain : SHIMANO 12 speed
P.C. D. : 110mm (SHIMANO 4 Bolts)
Size : 32T, 34T (Inner) for SHIMANO 50T
33T. 36T (Inner) for SHIMANO 52T
Color : Black / Gold
*FC-RS520 which is 12-Speed crankset with equivalent features to 105 is not compatible with CY4-SHC-12S.
*Front derailleur needs adjustment.
*Inner 32T and 33T setup exceeds drivetrain capacity and may have a slack in chain. The use of CAPACITY BOOSTER (sold separately) is required.
*You can use the original bolts that came with your SHIMANO crank or #804 for SHIMANO (sold separately).
Download the Press Release;
CY4-SHC-12S