Truvativ Descendant CoLab DH DUB

$530.00

In Stock

Troy Lee-designed Descendant CoLab DH DUB is a carbon downhill crankset built for stiff, reliable power with DUB 28.99mm spindle and Direct Mount X-SYNC™2 chainrings.

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Available Options

Option	Price	Availability
Truvativ, Descendant CoLab DH DUB, Crankset, Spindle: 28.99mm, 32, DUB, 165mm, Red, Boost	$530.00	In Stock
Truvativ, Descendant CoLab DH DUB, Crankset, Spindle: 28.99mm, 32, DUB, 165mm, Black, Boost	$530.00	Out of Stock

Product Details

Overview & Technology

Descendant CoLab DH DUB is Truvativ's collaboration crankset engineered for downhill and gravity riding. Built around a 28.99mm DUB spindle and full-carbon crank arms, it balances rider-focused stiffness with impact-resistant durability—key for big-hit enduro and DH laps. Troy Lee's camo graphics (Camo Red and Camo Black) give the crank a standout look while keeping ride-ready functionality front and center. Two hubbed spindle standards—the DUB73 option (165mm crank arm with 32T Direct Mount X-SYNC™2 ring) and the DUB83 option (165mm or 170mm with a 36T CNC X-SYNC™2 ring)—let you tailor gearing and clearance for your bike and terrain. The crankset uses a 52mm chainline and Boost spacing to suit modern DH/Enduro frames.

Key Features & Construction

The crank arms are forged carbon composite for a high stiffness-to-weight ratio and improved impact resistance over alloy arms. The Direct Mount X-SYNC™2 chainrings are CNC-machined for precise tooth profiles and consistent chain retention in rough conditions. The DUB interface centers on a 28.99mm spindle that pairs with Truvativ/SRAM DUB bearings for a robust interface that tolerates big loads and hard landings. • Carbon crank arms: tuned layup for stiffness and durability under heavy DH loads. • DUB 28.99mm spindle: wide contact area for bearing support and simplified BB choices. • X-SYNC™2 chainrings: Direct Mount CNC rings (36T on DUB83 or 32T on DUB73) for optimized chain control.

Fit, Compatibility & Specs

This crankset is designed for Boost drivetrain spacing with a 52mm chainline and requires a compatible DUB bottom bracket (BB not included). Spindle diameter is 28.99mm (DUB), so fit requires a DUB-compatible BB shell: DUB73 for 73mm shells (road/MTB shells labeled 73) or DUB83 for frames needing the 83mm spindle spec. Crank arm lengths offered are 165mm (both DUB73 & DUB83) and 170mm (DUB83), giving riders options for Q-factor and pedal clearance. Standard 9/16" pedal threads fit all common DH pedals. The crank is compatible with SRAM 1x drivetrains and modern narrow-wide systems via the X-SYNC™2 direct mount ring. Confirm your frame's BB shell width and axle standard before ordering; BB is sold separately.

Who It's For

This is for aggressive downhill and enduro riders who want a stiff, reliable crankset with premium aesthetics. If you push through rock gardens, big drops, and hard landings and want a direct-mount chainring with excellent chain retention, the Descendant CoLab DH is geared to withstand those demands. Choose the DUB73/32T 165mm if you prefer tighter gearing and shorter cranks for quicker stroke speed. Pick the DUB83/36T (165mm or 170mm) if you want taller gearing for high-speed tracks and more leverage on steep, technical climbs between descents.

Key Features

✓ Full carbon crank arms for high stiffness and impact resistance
✓ DUB 28.99mm spindle improves bearing support and durability
✓ Direct-Mount X-SYNC™2 CNC chainrings for superior chain control
✓ Available in Troy Lee Camo Red and Camo Black finishes
✓ Boost 52mm chainline tuned for modern DH and enduro frames
✓ 165mm and 170mm lengths to fine-tune pedal clearance and leverage
✓ 9/16" pedal threads accept all common flat and clipless pedals

Specifications

BB Inclusion	No
Chainline	52mm
Teeth	32
Crank Spindle Diameter	28.99mm
Crank Arm Length	165mm
Interface	DUB
Crankset Material	Carbon
Pedals Thread	9/16''
Primary Color	Black
Drivetrain Spacing	Boost

Product Identifiers

Vendor Item #	00.6118.579.001
UPC	710845838064

Frequently Asked Questions

Does this crankset include the bottom bracket?

No. The Descendant CoLab DH DUB is sold without a bottom bracket. You'll need a DUB-compatible BB (DUB73 or DUB83 depending on your frame shell) to match the 28.99mm spindle and your frame's shell width.

Which chainring sizes are available and what do they suit?

The DUB73 variant ships with a 32T Direct Mount X-SYNC™2 chainring (good for tighter DH tracks), while the DUB83 offers a 36T CNC X-SYNC™2 ring (better for higher top speed and longer tracks). Choose based on your terrain and pedaling preference.

Is this crankset compatible with SRAM drivetrains?

Yes. It is designed around SRAM's DUB standard and X-SYNC™2 chainrings and works seamlessly with SRAM 1x drivetrains. It also functions with most narrow-wide chainring setups that accept the Direct Mount interface.

What pedal thread and spindle diameter does it use?

Pedal threads are standard 9/16". The spindle diameter is 28.99mm (DUB), so you need a DUB-compatible bottom bracket and bearings for proper installation.

How durable is the camo finish for everyday riding?

The Troy Lee camo is applied to withstand trail use and normal abrasion, but like all painted surfaces it can chip from rock strikes or severe impacts. Regular cleaning and avoiding sharp impacts will keep the finish looking fresh longer.

What crank arm lengths are offered and how to choose?

Available lengths include 165mm (both DUB73 and DUB83) and 170mm (DUB83). Shorter arms suit riders who want faster cadence and improved corner clearance; longer arms give more leverage for big-power pedaling. Choose based on your height, riding style, and frame geometry.

Buying Guide

When choosing a downhill/enduro crankset, focus on spindle standard, crank length, chainline and material. Carbon arms offer excellent stiffness-to-weight but check durability ratings for hard-hit use; alloy cranks can be more forgiving in extreme impact scenarios. Match the spindle (DUB 28.99mm here) to a DUB bottom bracket that fits your frame shell. Decide on chainring size based on park vs. trail use: smaller 32T rings improve acceleration and manageability on steep, technical tracks; 36T rings suit high-speed tracks and longer transfers. Finally, confirm pedal thread, Boost compatibility and crank arm length to ensure the most comfortable and efficient setup for your bike and riding style.

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