SRAM RED XPLR E1 Wide Carbon Gravel Crankset

$999.99 AUD

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The SRAM RED XPLR E1 Wide Crankset combines ultra-light hollow carbon crankarms, secure X-SYNC chain retention and gravel-specific clearance, making it a premium performance upgrade for Australian gravel racing, fast all-road riding and demanding mixed-surface adventures.

SRAM RED XPLR E1 Wide Crankset Features

Ultra-light hollow carbon crankarms provide flagship stiffness and responsive power transfer on climbs and fast gravel sectors.
Wide 47.5mm chainline maximises tyre and frame clearance on compatible gravel bikes.
Direct-mount aluminium X-SYNC chainrings deliver dependable chain retention over corrugations, rocks and rough country roads.
Compatible with approved SRAM 12-speed and 13-speed drivetrains.
Eight-bolt direct-mount interface supports a future SRAM AXS power meter upgrade.

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The SRAM RED XPLR E1 Wide Crankset is a premium non-power 1x gravel crankset featuring hollow carbon crankarms, a Wide DUB spindle and a replaceable direct-mount X-SYNC chainring.

Product type: 1x gravel bike crankset
Drivetrain configuration: 1x
Speed compatibility: SRAM 12-speed and approved 13-speed systems
Crankset category: Road Wide and XPLR
Crankarm material: Hollow carbon fibre
Chainring material: Aluminium
Chainring construction: Direct mount
Chainring technology: SRAM X-SYNC
Manufacturer-listed chainring sizes: 40T, 42T, 44T, 46T, 48T and 50T
Common Australian retail sizes: 40T and 42T
Crank lengths: 160mm, 165mm, 167.5mm, 170mm, 172.5mm and 175mm
Chainring offset: 6.5mm
Chainline: 47.5mm
Chainring interface: SRAM eight-bolt direct mount
Conventional BCD: Not applicable
Spindle system: SRAM Road Wide DUB
Nominal spindle diameter: 28.99mm
Bottom-bracket compatibility: SRAM Road Wide DUB bottom brackets
Bottom bracket included: No
Compatible chain technologies: SRAM Road Flattop D1, Road Flattop E1, Eagle and T-Type in expressly approved drivetrain combinations
Front derailleur required: No
Power meter included: No
Power meter upgradeable: Yes
Pedal thread: Standard 9/16-inch
Finish: Natural carbon with black and silver detailing
Intended use: Gravel racing, cyclocross, endurance gravel and mixed-surface riding

Compatibility requirements

This is a Wide-chainline crankset designed primarily for modern gravel frames with additional tyre and chainstay clearance. SRAM recommends the Wide configuration for compatible XPLR bicycles with chainstays measuring 415mm or longer.

Compatible XPLR bicycles with chainstays measuring 414mm or shorter may instead require a standard 45mm road-chainline crankset. Frame geometry and drivetrain compatibility should be checked before ordering.

Package contents

Left hollow carbon crankarm
Right hollow carbon crankarm with Wide DUB spindle
Direct-mount aluminium X-SYNC chainring
Crank preload components
Standard assembly hardware

Not included

SRAM Road Wide DUB bottom bracket
Power meter
Cassette
Chain
Rear derailleur
AXS shift controls
Pedals
Installation tools

Hollow carbon crankarms

The SRAM RED XPLR E1 Wide Crankset uses hollow carbon crankarms engineered to deliver a high stiffness-to-weight ratio. The carbon structure places reinforcing fibres around heavily loaded areas while removing unnecessary material from lower-stress zones.

This construction produces a direct response during steep climbing, standing acceleration and hard race efforts. It also keeps the crankset light enough for top-level gravel race bikes without relying on a narrow or road-only spindle arrangement.

The hollow carbon arms should be inspected after significant pedal strikes, crashes or transport impacts. Deep gouges, cracked surfaces or exposed fibres require professional assessment.

Wide DUB architecture

The Wide DUB spindle positions the chainring further outboard than a standard SRAM road crankset, producing a 47.5mm chainline.

The wider position can provide:

Increased chainstay clearance
Improved compatibility with wider gravel tyres
Additional space around heavily sculpted frame tubes
Better integration with long-chainstay gravel frames
Appropriate alignment with compatible XPLR drivetrains

SRAM DUB uses a 28.99mm spindle intended to balance stiffness, bearing size, sealing and compatibility. A frame-specific SRAM Road Wide DUB bottom bracket is still required.

DUB does not mean one bottom bracket fits every bicycle. The bottom bracket must match both the crankset spindle and the frame’s bottom-bracket shell.

X-SYNC chain retention

The direct-mount chainring uses SRAM X-SYNC narrow-wide tooth profiling. Alternating wide and narrow teeth correspond with the chain’s inner and outer links, helping the chain remain engaged without a front derailleur.

Tall, square-edged teeth engage the chain early, while mud-clearing recesses help prevent dirt from accumulating around the chain rollers.

Available crank lengths

160mm
165mm
167.5mm
170mm
172.5mm
175mm

160mm and 165mm crankarms

The shorter options suit smaller riders, cyclists with restricted hip mobility and gravel racers seeking greater pedal clearance. They may reduce peak hip and knee flexion while supporting a smooth, higher-cadence pedalling style.

Shorter crankarms can also be advantageous when pedalling through rocky corners, deep ruts and uneven off-camber sections.

167.5mm and 170mm crankarms

These intermediate sizes provide a versatile balance between contemporary short-crank fitting and traditional road dimensions. The 167.5mm option offers a useful fit step between 165mm and 170mm.

172.5mm and 175mm crankarms

The longer options suit riders whose proportions, mobility and established position favour a larger pedal circle. Rider height alone should not determine crank length.

Bike-fit considerations

Changing crank length alters the position of the pedal at both the top and bottom of the stroke. Moving to a shorter crank normally requires an increase in saddle height approximately equal to the reduction in crank length.

A significant change may also affect:

Saddle setback
Cleat position
Handlebar height
Handlebar reach
Hip angle
Knee movement
Cadence
Pedal clearance
Standing climbing position
Weight distribution

Professional gravel bike fitting is recommended when changing crank length to improve comfort, manage mobility limitations or optimise race positioning.

Chainring selection

40T

The 40T chainring offers the easiest climbing gears among the most commonly stocked versions. It suits steep fire roads, hilly gravel racing, endurance riding and longer adventure events.

42T

The 42T option provides a versatile balance between climbing range and high-speed performance. It is an excellent all-round choice for Australian gravel events combining dirt climbs, rolling country roads and fast sealed connections.

44T

The 44T chainring favours faster racing while retaining useful climbing performance when paired with a 10-44T or 10-46T cassette.

46T

The 46T option suits powerful riders, flatter gravel courses and events with substantial sealed-road sections.

48T and 50T

These larger rings are highly speed-focused options for flatter gravel races, all-road competition and strong riders prioritising high gearing. Frame clearance and derailleur compatibility should be checked carefully.

The SRAM RED XPLR E1 Wide Crankset is best suited to serious gravel racers, endurance riders and performance-focused cyclists building a lightweight gravel bike around a Wide-chainline SRAM drivetrain.

Escape Collective reviewed the SRAM RED XPLR AXS E1 groupset on 1 August 2024 and described it as the next generation of SRAM’s 1x gravel platform. Reviewer Dave Rome praised the system’s robust drivetrain architecture, close 13-speed gear progression and replaceable chainring design. The review found that the complete drivetrain performed impressively while identifying premium pricing and strict frame compatibility as its principal limitations.

Riders moving to 160mm or 165mm crankarms often mention increased pedal clearance and reduced hip compression. These outcomes depend on correct saddle and cockpit adjustment rather than crank length alone.

Carbon crankarm inspection

Inspect both crankarms regularly for:

Cracks
Deep scratches
Gouges
Raised carbon fibres
Crushing damage
Heavy heel rub
Pedal-thread damage
Spindle-area damage
Significant impact marks

Stop riding if structural damage is suspected. Damaged carbon crankarms should be professionally assessed rather than repaired with general-purpose adhesive or cosmetic filler.

Chain and chainring care