Radio Flyer Duoflex Bike Trailer to Stroller vs Thule Coaster XT

Side-by-side specs from each maker.

Only the differences are shown.

Radio Flyer Duoflex Bike Trailer to StrollerThule Coaster XT
TypeBike trailerBike trailer
List price$429.99$499.95
Model number822 (SKU 822Z)10101822 (Black); 10101821 (Soft blue)
Age (maker)1+ yearsNot stated on the maker's page
Weight limit100 lb (total; 40 lb per child plus 20 lb cargo)100 lb (100 lb total carrier capacity, 2x49 lb per child)
Per seat40 lb49 lb
Seats2Not listed
Harness5-point harness on each seat5-point safety harness
Dimensions36 L x 39.75 W x 31 H in (product)Not listed
FoldedWheels on 36.5 L x 36.5 W x 14.7 H in; wheels off 30.5 L x 36.2 W x 14.1 H in37.8 x 30.7 x 11.8 in (L x W x H)
Product weight40.3 lb30.2 lb
FoldsYes, per the makerYes, per the maker
Infant insert (maker)Not listedThule infant sling for bike trailers sold separately ($129.95); not included
ConversionsStroller mode (remove bike arm, attach front casters, no tools)Includes bike trailer kit and basic stroller kit; no jogging kit mentioned
HitchIncluded tow arm and universal coupler; arm stores in a holster in stroller modeThule ezHitch axle mount; may require an adapter
Standards (maker's words)"ASTM F1975 (bike trailer) and ASTM F833 (stroller)"Not listed
Maker's warningsAdapter required for Flyer L885 (sold separately).Not listed

Radio Flyer Duoflex Bike Trailer to Stroller

Two-seat Radio Flyer trailer that converts to a stroller by swapping the bike arm for front casters.

  • Converts to stroller without tools
  • Folds with wheels on or off
  • Lists both trailer and stroller standards
  • Heavier than several trailers in this batch
  • Needs an adapter for the Flyer L885

Thule Coaster XT

A lower-priced two-child Thule bike trailer that comes with a bike kit and a basic stroller kit.

  • Lower price than other Thule doubles
  • Stroller kit included
  • Folds to a low profile
  • No suspension listed
  • Infant sling sold separately