Stone
Stone has designed and machined 7075 aluminium chainrings since 2014. Solid-face or hollow single chainrings for SRAM 8-bolt, Easton Cinch and DUB WIDE cranks, and a DUB 8-bolt crank to carry them.
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STONE AERO DUB 8-BOLT aluminium road and gravel crankset -
STONE DUB 8-BOLT aluminium road and gravel crank arms -
STONE AERO T-TYPE 1x MTB chainring -
STONEDW HOLLOW DUB WIDE 1x road and gravel chainring -
STONEDW AERO DUB WIDE 1x road and gravel chainring -
STONEDW HOLLOW EASTON CINCH 1x road and gravel chainring -
STONE AERO EASTON CINCH 1x road and gravel chainring -
STONE AERO SRAM 8-BOLT 1x road and gravel chainring
The chainring as a craft
Stone Design Workshop was founded in 2014 with one subject: the bike chainring, designed and machined with precision. The brand, based in Shenzhen, China, designs its tooth profiles with its own team and is on its eighth generation. It has since added spiders, cranks and the STONEDW line, but the chainring remains at the heart of the company. Every tooth profile has its chain: on some chainrings, Stone even engraves the one it expects, “FOR AXS 12SP” or “FOR T-TYPE”.
Material, tolerance, test bench
The chainrings are cut from 7075-T651 aluminium from American suppliers, Aleris and Aleco, on machining centres from Taiwan, with a claimed precision of 0.03 mm. On the DUB WIDE chainrings, Stone holds interface parallelism to 0.02 mm. Then comes the fatigue rig: the Aero chainring takes 50,000 cycles at 1,800 N at 45°, the DUB 8-bolt crank 100,000 cycles at 1,800 N, at 45° as well as at 30°.
Solid face or hollow
The Aero chainrings have a closed face: it flexes less when you accelerate or sprint. The Hollow chainrings are cut out: the Hollow DUB WIDE weighs 88.2 g in 36 teeth, is less conspicuous under the chain and catches less crosswind. That leaves the tooth count, and a workshop rule: two more teeth at the front lengthen the gear by about 5% on every cog. Going from a 42 to a 44-tooth with a 28 mm tyre means riding at 50.8 km/h instead of 48.5 km/h in the 10-tooth, at 90 rpm.
Why MAAKE carries it
To choose your single chainring to the exact tooth, from 26 to 58 teeth, on the crank you already have. At MAAKE: the Aero SRAM 8-bolt, the ready-to-fit Aero DUB 8-bolt crankset, the Hollow DUB WIDE for long rides, and two Easton Cinch chainrings that fit Cybrei cranks.
Frequently asked questions
Which Stone chainring for my crank?
Each Stone chainring is made for one interface: SRAM 8-bolt, Easton Cinch, SRAM DUB WIDE, or SRAM Eagle 8-bolt for MTB. Look at how your right crank is mounted, then at the chain given on the product page.
How many kilometres does a Stone chainring last?
Stone generally quotes 15,000 to 20,000 km. Replacing the chain before it is too stretched spares the chainring as much as the cassette.
What is the difference between Stone and STONEDW?
STONEDW is a line from the same brand, which includes the cut-out Hollow chainrings and the DUB WIDE chainrings. At MAAKE, all these parts are listed under Stone.