LEWIS Titanium MTB Crankset with 29mm Boost Spindle, 160mm Crank Length

Fit Notes

• Fits 68mm and 73mm bottom bracket shells. The bottom bracket is not included.

Crank length is the first thing to settle on the LEWIS Titanium crankset, because it comes at one stated length: 160mm. After that, check that spindle and chainring line up with the rest of your drivetrain.

Is a 160mm Crank Length Right for You?

As general guidance, shorter arms give more clearance over rocks and roots, and they change how your knees and hips work through each pedal stroke. If you already ride something close to 160mm, the move is small; coming from a much longer crank, allow some time to adapt and check your saddle height afterward.

Lining Up the 29mm DUB Boost Spindle

The crankset uses a 29mm spindle compatible with the SRAM-DUB specification, labelled Boost, and its stated weight includes a 29x100mm spindle and Fix Ring. Bottom bracket details and other spindle widths are not stated, so check your frame's shell and your bottom bracket against this before ordering.

Planning the Chainring Around the 8-Bolt Interface

Mounting follows the 8-bolt SRAM specification, and commercially available chainrings using that same specification are stated to fit. Whether a ring comes in the box is not stated, so plan your tooth count and offset now and confirm what you need to order alongside the crankset.

• Decide whether 160mm suits your bike and riding.
• Check your bottom bracket against the 29mm DUB specification.
• Confirm your frame needs the Boost spindle setup.
• Choose a chainring with the SRAM 8-bolt mount.
• Check your chain, as compatibility is not stated.
• Expect the titanium original color and hollow-out design, not a painted finish.

The CNC machined titanium build is described as downhill optimized with excellent torsional stiffness, and it is aimed at DH, Enduro and other heavy mountain bikes. If yours is one of those and the checks above work out, start fitting with clean bottom bracket surfaces and careful, even tightening.

Technology

Ti CNC

LEWIS-TI Titanium Cranks

An organic combination of titanium materials and the mountain bike industry.

Suitable for DH, Enduro and other heavy mountain bikes, more stronger.

SRAM-DUB

Compatible with SRAM-DUB specification, portable and easy to mount.

SRAM 8-bolt

LEWIS Ti crankset mounting utilize SRAM 8-bolt mounting specifications and are compatible with commercially available chainrings that utilize the same mounting specifications.

CNC high precision cutting and molding

The Ti series cranks have excellent torsional stiffness while having a larger safety few remaining design than the ALU series cranks, which has a longer service life in ultra-limited prancing and falling performances, providing more safety for the ultra-spec rider.