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Shimano Dura-ace 7900 Cassette |
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$325.00 |
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Shifting has been even further improved by creating an even more rigid (and lighter) aluminum carrier unit along with re-engineered teeth profile. Cassette design is lighter as Shimano has developed a super lightweight and rigid aluminum cassette sprocket carrier. The largest four cogs are titanium and weight is reduced by 10 grams. |
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Shimano Dura-ace 7800 Cassette |
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$290.00 |
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A superior surface treatment has been applied to the titanium sprockets of the Dura-ace 7800 cassette, that increase durability by approximately 30%. The sprocket width has been slightly reduced, to achieve chain compatibility and only increases the overall weight of the cassette sprocket by 17 grams more compared to the 9-speed CS-7700 sprocket. The CS-7800 Sprocket is compatible with the 9-speed freehub because it is designed to have nearly the same width. |
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Shimano Ultegra CS 6700 Cassette |
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$139.00 |
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The Shimano Ultegra 6700 cassettes feature a large selection of gears to optimize your everyday performance. The weight has dropped slightly by further drilling the rear cogs. In addition the individual teeth have been machined down to near perfection to improve shifting under load. |
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Shimano Ultegra CS 6600 Cassette |
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$125.00 |
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New Ultegra 6600 10 speed cassette. The largest three sprockets are mounted on an alloy carrier to reduce weight and increase rigidity. The larger sprockets are drilled out for further weight reduction |
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Shimano 105 CS5600 Cassette |
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$105.00 |
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Shimano's 105 5600 cassette has the 3 largest sprockets mounted on a lightweight rigid alloy sprocket carrier. This results in a major weight reduction and increased stiffness. |
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SRAM OG-1090 Powerdome Cassette |
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$255.00 |
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The PowerDome is basically a two-step process. First, a block of chromoly steel is milled into a dome, with the cog teeth then CNC-machined into the dome. SRAM claims that one cassette requires a full hour of milling and machining before it's done. From there, the steel gets a nickel finish to give it immense hardness. SRAM's testing indicates that it's 35% harder than titanium -- which directly impacts the durability of the cassette. They wear out at a slower rate, so you end up replacing your cassette less often. This steel 8-cog block then gets paired with two additional "floating" cogs to make 10 cogs total. Beyond durability, PowerDome construction lends the OG 1090 two other benefits: (1) Lightness. The 11/23 weighs a scant 155g. The 11/26 is 166g. By comparison, a Steel/Ti Record cassette weighs 188g, a Dura-Ace cassette weighs 170g, and a Force-quality OG 1070 cassette weighs 220g. (2) Stiffness. SRAM testing indicates that their one-piece cassette dome makes the OG 1090 15% stiffer than any other cassette. We can especially see the upside when you're in your climbing cogs, wrapping a lot of chain and exerting no small amount of torque. |
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SRAM OG-1070 Cassette |
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$90.00 |
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The SRAM PG-1070 Progessive Glide 10-speed cassette brings a simple and effective new approach to how a cassette should be designed to ensure proper shifting. The SRAM PG-1070 cassette incorporates SRAM's Progressive Glide™ technology, which removes a tooth in the top 5 cog in the cassette. This reduces weight and allows for superior shifting under heavy stress. |
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KCNC Scadium Cassette |
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$319.90 |
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An exquisite and patented design, these cassettes are the ultimate accessory to round off your high performance machine. If you're running lightweight wheels then make the most of that advantage with one of the lightest cassettes available on the market. |
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Campagnolo Super Record 11 Cassette |
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$450.00 |
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The Super Record 11 cassette features six titanium cogs and five in steel. The sprocket set exploits a new frame for the two supersize titanium sprocket triplets. The strength and resistance to torsion have been increased as a result. The design of the teeth strains the chain less. Eleven sprockets that are even more efficient despite the reduction of the thicknesses. The teeth have been designed to optimize the speed and fluidity of shifting. This form reduces stress on the chain which ascends more easily onto the higher diameter sprockets. The large pinions are divided into sets of three and are mounted on a new aluminum frame. Thanks to this, rigidity increases 180% and the individual sprockets are 70% more resistant to torsion. |
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Campagnolo Chorus 11 Cassette |
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$190.00 |
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Painstaking work was carried out on the production of the new Chorus 11 cassette. The additional gear led us to devising a new support structure for the last six sprockets in two subsets. The form of the teeth is new and they have been treated to increase duration over time. Eleven sprockets that are even more efficient despite the reduction of the thicknesses. The teeth have been designed to optimize the speed and fluidity of shifting. This form reduces stress on the chain which ascends more easily onto the higher diameter sprockets. The large pinions are divided into sets of three and are mounted on a new aluminium frame. Thanks to this, rigidity increases 180% and the individual sprockets are 70% more resistant to torsion. |
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Campagnolo Centaur 10 Cassette |
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$169.00 |
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The Campagnolo 10 speed system makes it possible to optimize shifting in an excellent manner with the Ultra-Drive™ design. The form of the sprocket teeth ensures the best grip for the chain. Strength has also been improved by the nickel-chrome treatment. The sprockets are all single. |
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8 Speed Freewheel |
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$69.00 |
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Just when you thought 8 speed compatible parts were extinct. Thread on freewheel to keep your classic bike running in tip top shape. |
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7 speed Freewheel |
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$59.00 |
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Just when you thought 7 speed compatible parts were extinct. Thread on freewheel to keep your classic bike running in tip top shape. |
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| Purchase Policy | info@racersportif.com | Toronto 416.769.5731 | Oakville 905.815.2100 |