CAPACITY BOOSTER (big pulleys) specially designed to work with SHIMANO 12 Speed drivetrain.
Just swapping out Shimano original pulleys to Sugino "CAPACITY BOOSTER" increases rear derailleur capacity and prevents chain slack when crosschained in small /small when CY4-SHC 33T or 32T is used*.
*For 34T and 36T, either Shimano original pulley or CAPACITY BOOSTER can be used.
*For 32T and 33T, the use of CAPACITY BOOSTER is required.
"CAPACITY BOOSTER" perfectly fits Shimano 12-speed drivetrain, works with the standard cage on Shimano derailleur and boosts derailleur capacity and shifting performance.
①Swing Eccentric MechanismAs the axle is fixed eccentrically, the pulley resonates with the motion of the rear derailleur and adjusts its position to cassette cogs automatically. So, shifting is just as accurate as it is with the original pulley.
②Rotational resistanceOversized pulleys and ceramic bearing reduce rotational resistance.
③Friction resistance (S3 coating)S3 combines high hardness with super low friction coefficient which is less than half that of the titanium coating. So, the chain resistance could be reduced to minimum.
Compatibility:
CB12SDA : SHIMANO RD-R9250 (DURA-ACE)
CB12SUL/105 : SHIMANO RD-R8150 (ULTEGRA), RD-R7150 / RD-R7100 (105)
Chain : SHIMANO 12 speed
*Please select CB12SDA or CB12SUL/105 depending on your rear derailleur. These 2 versions are not interchangeable.
Guide pulley 12T / Tension pulley 16T
Material : CNC aluminum alloy
Finish : S3 Coating
Bearing : Ceramic (sealed)
*Set includes 2 pulleys (guide & tension)
*Use only“neutral” cleaning agents for Super Series (S3 finish). Liquids and others which contain acid or alkali will harm finished surface and can cause malfunction to the product.
Swing Eccentric Mechanism
As the axle is fixed eccentrically, the pulley resonates with the motion of the rear derailleur and adjusts its position to cassette cogs automatically.
So, shifting is just as accurate as it is with the original pulley.
Just swapping out Shimano original pulleys to Sugino "CAPACITY BOOSTER" increases rear derailleur capacity and prevents chain slack when crosschained in small /small when CY4-SHC 33T or 32T is used*.
*For 34T and 36T, either Shimano original pulley or CAPACITY BOOSTER can be used.
*For 32T and 33T, the use of CAPACITY BOOSTER is required.
"CAPACITY BOOSTER" perfectly fits Shimano 12-speed drivetrain, works with the standard cage on Shimano derailleur and boosts derailleur capacity and shifting performance.
①Swing Eccentric Mechanism
As the axle is fixed eccentrically, the pulley resonates with the motion of the rear derailleur and adjusts its position to cassette cogs automatically. So, shifting is just as accurate as it is with the original pulley.
②Rotational resistance
Oversized pulleys and ceramic bearing reduce rotational resistance.
③Friction resistance (S3 coating)
S3 combines high hardness with super low friction coefficient which is less than half that of the titanium coating. So, the chain resistance could be reduced to minimum.
Compatibility:
CB12SDA : SHIMANO RD-R9250 (DURA-ACE)
CB12SUL/105 : SHIMANO RD-R8150 (ULTEGRA), RD-R7150 / RD-R7100 (105)
Chain : SHIMANO 12 speed
*Please select CB12SDA or CB12SUL/105 depending on your rear derailleur. These 2 versions are not interchangeable.
Guide pulley 12T / Tension pulley 16T
Material : CNC aluminum alloy
Finish : S3 Coating
Bearing : Ceramic (sealed)
*Set includes 2 pulleys (guide & tension)
*Use only“neutral” cleaning agents for Super Series (S3 finish). Liquids and others which contain acid or alkali will harm finished surface and can cause malfunction to the product.