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Average connection time 25 secs
Average connection time 25 secs
Besides serious weight savings, this bottom bracket means narrow Q-factor, more ankle clearance, greater bearing durability and stronger crank construction.
GXP’s Gutter Seal design cuts friction and weight—improving both feel and performance.
A variant of the external GXP bottom bracket, PressFit cuts weight by up to 40 grams and eases installation by allowing you to press the bearing cups into the frame instead of threading them. It requires no change to the crank spindle length and diameter.
This is a new design led by SRAM. It’s all the best from BB30 and Press-Fit bottom brackets in one captivating package. This bottom bracket is designed for 30mm spindle cranksets. The key difference with PressFit 30 is how the bearings are fitted into the frame. Bearings are housed in nylon cups which will be pressed into the frames bottom bracket shell. PressFit 30 will feature an integrated seal, pre-assembled into the cups, to further prolong bearing life. Frames will need a 46mm inner-diameter bottom bracket shell to accommodate this system. PressFit 30 for road will require a 68mm wide shell while PressFit 30 for MTB will require a 73mm wide shell. Advantages: Huge weight savings, narrow Q-factor, more ankle clearance, greater bearing durability, stiffer/stronger crank construction, simple installation. Allows for larger diameter frame tubes increasing frame stiffness. Drawbacks: Still searching.
The chainrings are designed for an optimized shifting performance with the Yaw front derailleur. The stiffer rings (5mm 7075-T6 aluminum CNC-machined) feature upshift rivets with an advanced design adopted from SRAM XX. CNC machining allows for precision control of each tooth shape, ramp, and nearly every shifting feature of the chainring. Chainrings, chain, and front derailleur are designed as a single integrated system for optimized performance.
The front derailleur cage rotates to maintain a consistent angular relationship with the chain. Yaw technology eliminates the need for shifter trim. As a result, shifts feel more direct, more precise, and combined with the new Red crankset and chainrings, delivers an unmatched performance advantage in front shifting.
- Aluminum arms and machined alloy ring and spiders
- 165, 167.5, 170, 172.5 and 175mm length options
- X-GlideR chainrings
- GXP, PressFit, BB30, PressFit 30 bottom brackets
- 110 BCD, 52/36 - 50/34 - 46/36
- Weight: 860g (BB30 50/34 w/o BB)/ 844g (GXP 50/34 w/o BB)
- Arm Material: Forged aluminum arms, Machined alloy spider
- Chainring Material: Machined alloy rings
- Weight: 873g (BB30 172.5mm 52x36 BB not included)/ 857g (GXP 172.5mm 52x36 BB not included)
- Available Arm Lengths: 165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mm
- Available Ratios: 52/36, 50/34, 46/36
- Compatibility: SRAM RED® 22, Force 22 & Rival 22 Yaw™ front derailleurs/ SRAM PC 1170 & PC 1130 chains
- Finish: Black
- Recommended Chain: SRAM PC 1130 chain
- Technology Highlight(S): X-GlideR chainrings/ Hidden bolt configuration
- 11 Speed
- Mechanical Drivetrain
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