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2. Troubleshooting / Tips & Specifications
Brakes
Front brake - 140/160mm disc rotors
Rear brake - 140/160mm disc rotors
Rear mount thickness: 25mm.
Tire Clearance
700c
Maximum clearance: 700x45c. Tires must be no wider than 48mm for both front and
rear wheels. With fenders, tires must be no wider than 40mm.
650b: Same as 700c
Seat Post
Ø 27.2mm
Bottom Bracket
BB86 (Press-fit)
Headset
A18 3D IST2
Bottom Bearing: MR127 - 1 1/2”, 36° x 45° Stainless Steel
Top Bearing: MR127 - 1 1/2”, 36° x 45° Stainless Steel
*Some systems may require a 1 1/2”, 45° x 45° top bearing
For more information, please refer to: Argon 18 - Internal routing compatibility
Chainring
The Dark Matter can run a 50-34 chainring maximum. It has been optimized for a
gravel crankset.
A chainring of 48T maximum can be installed in 1x configuration.
Seat Post Collar
Ø 31.8mm
Front Derailleur
The Dark Matter can be used with a front derailleur.
Accessories
The Dark Matter is designed to take fenders, a rear rack up to 27kg and front rack up
to 18kg.
Please contact customer service at info@argon18.com for any further
inquiries.
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