The SRAM Force E1 AXS 2x DUB crankset embodies the perfect synthesis of lightness, stiffness and elegance for demanding cyclists. Redesigned for the E1 generation, this carbon crankset integrates SRAM's X-Range philosophy with 46/33 tooth chainrings and a constant 13-tooth gap, offering an extended gear range while minimizing front shifts. Featuring the DUB interface (29 mm spindle) and direct-mount aluminum chainrings, it combines aerodynamic performance, ease of maintenance and universal compatibility with all SRAM Road DUB bottom brackets.

Force E1 Crankset Highlights

• Redesigned carbon fiber crank arms: 60 grams lighter than the previous generation, they offer an excellent stiffness-to-weight ratio for optimal power transmission.
• X-Range Technology: Smaller chainrings with a constant 13-tooth gap and cassettes starting at 10 teeth, allowing you to stay on the big ring longer and minimize front shifts, which are inherently less efficient.
• One-piece aluminum direct-mount chainrings: The one-piece design of 2x chainrings offers increased stiffness, reduced weight and long-term durability. The chainrings are directly threaded (Thread Mount), facilitating replacement and adjustment according to your needs.
• Universal DUB interface: Oversized 29 mm diameter spindle guaranteeing maximum stiffness, durability and compatibility with all SRAM Road DUB bottom bracket standards.
• Precise and fast front shifts: Road-Yaw technology ensures crisp and reliable shifts, even under load.
• Power meter upgradability: Architecture prepared to accommodate a SRAM AXS power meter (spider or spindle) without modification.

X-Range Technology: Rethinking the Drivetrain

SRAM has revolutionized the road drivetrain by shifting part of the gear range from the front to the rear. With smaller chainrings and a constant 13-tooth gap (46/33, 48/35 or 50/37), paired with 12-speed cassettes starting at 10 teeth, X-Range technology offers:

• Extended gear range: Up to 360% ratio with 10-36 cassettes.
• More consistent progression: Fewer front shifts required, and when a shift occurs, the smaller jump allows you to find the right cadence with less compensation at the rear.
• Increased efficiency: More time on the big ring = fewer losses related to front shifts.

DUB Interface: Simplicity and Performance

Introduced in 2018 for MTB then extended to road in 2019, DUB (Durable Unified Bottom Bracket) technology simplifies compatibility between frames and cranksets. The 29 mm spindle requires specific bearings (6806/29), offering:

• Optimal stiffness: The relationship between spindle and bearing is at the heart of DUB technology — where stiffness and durability meet.
• Increased longevity: Enhanced sealing (Gutter Seal Technology) protecting against the elements.
• Simplified installation: A single spindle standard for all SRAM Road DUB bottom brackets (BSA, BB86/92, PF30, BB30, BB386).

Detailed Technical Specifications

• Speeds: 12 (compatible with SRAM Force, RED and Rival AXS 12-speed groups).
• Chainrings: 46/33 teeth (13-tooth gap) — direct mount, aluminum.
• Crank arm length: 170 mm (other lengths available: 160, 165, 172.5, 175 mm).
• Chainline: 45.0 mm (road/gravel disc).
• Spindle: DUB 29 mm (bottom bracket sold separately).
• Materials: High-performance carbon crank arms, reinforced 7000 aluminum chainrings.
• Weight: Approximately 622 g (version without power meter) for a complete 2x crankset with chainrings.
• Chain compatibility: SRAM Flattop D1 and E1 12-speed chains.

Available Variants

The SRAM Force E1 2x DUB crankset is available in several crank arm lengths and chainring combinations to suit all body types and uses:

• 160 mm variant — 46/33D: EAN 710845915710 / Ref. 00.6118.738.012
• 165 mm variant — 46/33D: EAN 710845915727 / Ref. 00.6118.738.013
• 170 mm variant — 46/33D: EAN 710845915734 / Ref. 00.6118.738.015 (model shown)
• 172.5 mm variant — 46/33D: EAN 710845915741 / Ref. 00.6118.738.016
• 175 mm variant — 46/33D: EAN 710845915758 / Ref. 00.6118.738.017
• Other chainring combinations: 48/35D and 50/37D available in the same lengths (160 to 175 mm), to adapt the drivetrain to your riding profile (flat, hilly, mountain).

Installation and Compatibility

The Force E1 crankset requires a SRAM DUB bottom bracket (sold separately) compatible with your frame. SRAM offers bottom brackets for all standards: threaded BSA, BB86/92, PF30, BB30, BB386. Check your frame standard and choose the corresponding DUB bottom bracket. Thread Mount chainring installation is performed using the specific SRAM tool.

Who Is This Crankset For?

• Performance road cyclists: Seeking maximum lightness, stiffness and responsiveness.
• Sportive riders and climbers: Benefit from X-Range technology to easily manage cols and rolling terrain.
• Competitors and triathletes: Precision front shifts, aerodynamics and power meter compatibility.
• Modern gravel cyclists: 45 mm chainline compatible with road/gravel disc, gear range suited to varied terrain.

In Summary

The SRAM Force E1 AXS 2x DUB 170mm 46-33D is the reference crankset for those seeking performance, versatility and upgradability. Direct heir to RED technology, it offers an excellent compromise between controlled weight (622 g), optimal stiffness and competitive pricing. With its redesigned carbon crank arms, one-piece Thread Mount chainrings and universal DUB interface, this crankset stands out as a rational and passionate choice to equip your high-end road or gravel machine.