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The Mountain Buggy Duet V3.2 solves the primary problem with side-by-side double strollers: width. Most side-by-side doubles are too wide to fit through a standard doorframe, which limits where parents can actually go with them. The Duet measures just 25 inches wide, the same footprint as a single stroller, which means it fits through standard doorways, shop entrances, and public spaces without requiring a second entrance or a workaround. That single design decision makes it genuinely usable for everyday life in a way that most double strollers are not.
The frame is aircraft-grade 6060 T52 aluminum, which is the same material specification used in aerospace manufacturing for its strength-to-weight ratio. The 10-inch air-filled tires handle the full range of surfaces from smooth mall floors to packed dirt trails without swapping wheels or adjusting the frame. The hand-operated active brake provides maximum control on slopes and uneven terrain, which matters more on a loaded double stroller than on a single. The one-hand compact fold drops flat and stands independently for storage without needing to lean it against a wall.
Both seats lie fully flat from birth using the fabric sling seat design, which means the Duet is newborn-ready for twins or a newborn and toddler combination without purchasing a separate bassinet attachment. The patented tail-free five-point harness keeps straps away from small hands and out of the seat gap. Individual UPF 50+ sun hoods with magnetic peek-a-boo flaps and additional sun mesh visors provide independent coverage for each child. The under-seat gear tray with zip pockets holds up to 10 kg of essentials across both compartments.
The Duet is compatible with the Carrycot Plus for a dedicated flat sleeping surface, the Mountain Buggy Cocoon, select car seat adapters for travel system use, and the Freerider Scooter Board for an older child who has outgrown the seat. ANB Baby carries the full Mountain Buggy collection and all orders over $45 ship free.
| Unfolded Dimensions: | 45" L x 41" H x 25" W |
| Folded Dimensions: | 12" L x 25" H x 35" W |
| Seat Dimensions: | 22" L x 11" H x 7.5" W (individual seat) |
| Lie-Flat Dimensions: | 30" L x 11" H (fully reclined) |
| Handlebar Height: | 29" to 43" |
| Product Weight: | 32 lbs (including frame, wheels, gear tray, fabric sling seat, grab bar) |
| Compatible With: | Carrycot Plus, Cocoon, Freeriderβ’ Scooter Board and car seat adapters (sold separately) |
| Recommended Use | |
| Age Range: | Newborn to 4 years |
| Weight Capacity: | 40 lbs per seat |
| Cleaning Instructions: | Wipe clean with a damp cloth; seat fabric and liners can be spot cleaned as needed. |
| Safety Measures: | Always engage brakes when stationary. Secure both children with 5-point harnesses. Never overload gear tray beyond 10 kg. |
| Brand: | Mountain Buggy |
| Silver Manufacturer SKU: | DUET_V3.2-Silver |
| UPC: | 9420015761863 |
| Black Manufacturer SKU: | DUET_V3.2-BLK |
| UPC: | 9420015761856 |
| Grid Manufacturer SKU: | DUET_V3.2-GRD |
| UPC: | 9420015761764 |
Yes, the fabric sling seats recline fully flat, making it newborn-ready.
Yes, its wheelbase is just 25 inches, the same as a single buggy.
No, but it is compatible with Mountain Buggy Carrycot Plus, Cocoon, and car seat adapters (sold separately).
Itβs designed for all terrains, including city streets, parks, and mountain trails.
Yes, it folds flat with one hand and stands on its own when folded.
Each seat has a maximum load capacity of 40 lbs.
Yes, it features a hand-operated active brake for better control on slopes.
Yes, the UPF50+ sun hoods have pull-out mesh visors and magnetic peek-a-boo flaps.
Yes, it is compatible with the Freeriderβ’ Scooter Board.
Yes, it has a patented tail-free 5-point harness that enhances safety and prevents loose straps.





