How much weight does a 1x Garbaruk setup save?

Garbaruk quotes a 150–400 g saving on the whole bike once the front derailleur and chain guide go; direct-mount rings also remove the crank spider.

Oval or round Garbaruk chainring?

Same mount, material and tooth profile. Garbaruk says the oval ring spreads pedalling torque more evenly, narrows the dead spots, eases climbing on soft or slippery ground and improves efficiency; the round ring gives the familiar, constant feel. The oval ring is directional, so it must be fitted the right way round.

Which chains work with Garbaruk chainrings?

Garbaruk lists its chainrings as compatible with all 9-, 10- and 11-speed chains, SRAM 12-speed MTB chains (Eagle and T-Type), KMC, Shimano HG+ and SRAM AXS Flattop chains.

What does the chainring offset mean?

Offset moves the teeth towards or away from the frame to set the chainline. Garbaruk publishes the offset for every size and shape in the spec table of each model (shown under Technologies); pick the size whose offset suits your frame and cassette.

GARBARUK DM Aero Chainring for Cannondale HollowGram, Round

Black

€111,85

Tax Included
EU Destination Selected (Spain)

Out of stock

Product not available to collect today in store

The essentials

Best for

1x road
Aero builds
Cannondale cranks

GARBARUK DM Aero Chainring for Cannondale HollowGram, Round - Black

Technologies

Specifications

Mount	Cannondale direct mount
Compatible cranksets	Cannondale HollowGram Si / Si 2016, SiSL2
Offset, round (mm)	2.2 (38T–40T), 1.7 (42T), 0 (44T), -2.5 (46T–52T), -4.8 (54T)
Weight	119 g (42T) – 152 g (48T) (Garbaruk)
Chain compatibility	all 9-, 10- and 11-speed chains, SRAM 12-speed MTB chains (Eagle and T-Type), KMC, Shimano HG+ and SRAM AXS Flattop chains
Made in	Poland (Garbaruk)

Garbaruk tooth profile

Garbaruk's chainring teeth have a special shape for tighter chain contact and softer pedalling, increased tooth height to hold the chain when the bike shakes over rough ground, and variable tooth thickness to prevent chain drops.

Chamfered edges and wide mud gap

Chamfered edges and a wide gap between the teeth keep mud from packing into the ring (Garbaruk).

1x weight saving

Going 1x with a Garbaruk ring saves 150–400 g on the whole bike, without a front derailleur or chain guide (Garbaruk). Direct-mount rings also drop the crank spider.

GARBARUK DM Aero Chainring for Cannondale HollowGram, Round - Black

Compare with

	GARBARUK DM Aero Chainring for Cannondale HollowGram, Round - BlackThe aero version of Garbaruk's Cannondale HollowGram direct-mount ring (Si, Si 2016, SiSL2).	GARBARUK DM Road Chainring for Cannondale HollowGram, Round - Silver Choose it for the standard (non-aero) version: lighter on the wallet.
Regular price	€111,85	€84,40
Safety rating	—	—
Mount	Cannondale direct mount	Cannondale direct mount
Compatible cranksets	Cannondale HollowGram Si / Si 2016, SiSL2	Cannondale HollowGram Si / Si 2016, SiSL2 and other cranks with the Cannondale direct-mount interface
Offset, round (mm)	2.2 (38T–40T), 1.7 (42T), 0 (44T), -2.5 (46T–52T), -4.8 (54T)	2.2 (38T–40T), 1.7 (42T), 0 (44T), -2.5 (46T–52T), -4.8 (54T)
Weight	119 g (42T) – 152 g (48T) (Garbaruk)	87 g (38T) – 110 g (46T) (Garbaruk)
Chain compatibility	all 9-, 10- and 11-speed chains, SRAM 12-speed MTB chains (Eagle and T-Type), KMC, Shimano HG+ and SRAM AXS Flattop chains	all 9-, 10- and 11-speed chains, SRAM 12-speed MTB chains (Eagle and T-Type), KMC, Shimano HG+ and SRAM AXS Flattop chains
Made in	Poland (Garbaruk)	Poland (Garbaruk)