EVOSID SL1 1x Gravel Bike Crankset DUB 40T 42T 44T Narrow Wide Chainring 165 170
EVOSID SL1 1X Gravel Crankset — ES1001 Narrow-Wide Chainring
SL1 crank arms paired with the EVOSID ES1001 narrow-wide single chainring. Comes with the matching threaded bottom bracket.
Forged Arms. Narrow-Wide 1X Ring.
A 1X crankset for gravel: one chainring, no front derailleur to adjust, and forged arms that stay stiff under hard efforts on rough ground.
Spindle
DUB 28.99mm
SRAM DUB standard
Crank Length
165 / 170mm
Choose from the drop-down
Chainring
40T / 42T / 44T
Narrow-wide, 7075-T6 alloy
Q-Factor
146mm
Tread width
EVOSID SL1 Forged Crank Arms
Forged, CNC-finished arms on a SRAM DUB-standard spindle.
Forged and CNC-Machined, Not Just Machined from Stock
The SL1 arms start from a forged 6061-T6 aluminum blank rather than bar stock, giving the crank arm a stronger internal grain structure for high stiffness and crack resistance under hard pedaling — the factory quotes roughly 15% lower weight and 20% higher stiffness.
165mm arms
609g
170mm arms
660g
Gap Adjustment Ring
A preload adjustment ring on the non-drive arm takes up the play between the crank and the bottom bracket, then locks in place with a small pinch bolt — so the crankset spins freely without side-to-side movement.
DUB 28.99mm Spindle
The spindle follows the SRAM DUB standard, so it works with DUB bottom brackets as well as the EVOSID threaded bottom bracket offered below.
EVOSID ES1001 Narrow-Wide Single Chainring
Built for 1X drivetrains.
Narrow-Wide Teeth Keep the Chain On
Alternating narrow and wide teeth match the chain's inner and outer links, gripping every link so the chain stays put over washboard, roots and rough descents. The ring is fully CNC-machined from 7075-T6 high-strength aluminum with a cut-out spoke design, and mounts directly to the SL1 crank arm with 3 bolts — no separate spider.
40T
The easiest gearing of the three — a lighter spin on loose or steep terrain.
Chainring weight: 90g
42T
The middle option for mixed gravel and road riding.
Chainring weight: 97g
44T
A taller top end for faster, flatter routes.
Chainring weight: 107g
EVOSID Threaded Bottom Bracket Included
Every crankset ships with the matching bottom bracket and its spacers, ready to install.
EVOSID BC1.37"×24T Threaded Bottom Bracket
A BSA (English) threaded bottom bracket for DUB spindles. Overall width is 90mm and it fits bottom bracket shells from 68mm to 73mm wide, with spacers included (two 2.6mm, one 3mm and one 4.5mm) to take up the difference. Threading directly into the shell avoids the creaking press-fit bottom brackets are known for.
Technical Details
What's in the Box
×1 pair
EVOSID SL1 Crank Arms (length as selected)
×1
EVOSID ES1001 Single Chainring (fitted, as selected)
×1
EVOSID BC1.37"×24T Bottom Bracket + Spacers
Buyer Notes
Check Your Bottom Bracket Shell
The included bottom bracket fits BSA (English) threaded shells 68-73mm wide. It is not a press-fit design. If your frame uses a press-fit or other shell standard, this bottom bracket won't fit, so you'll need a DUB bottom bracket made for your frame.
Built for 1X (Single-Chainring) Drivetrains
This is a single-chainring crankset. It is designed to run without a front derailleur, with the narrow-wide teeth keeping the chain on the ring.
Pedals Not Included
Pedals are sold separately.
