Thule Motion XT M

When comparing the Thule Motion XT M and the Thule Force XT XL, the most significant factor is cargo space, as the Force XT XL offers a substantially larger volume of 500 litres compared to the Motion XT M's 400 litres. This extra capacity in the Force XT XL also translates to better capacity for longer equipment, handling skis up to 195cm and five snowboards, whereas the Motion XT M manages skis up to 155cm and four snowboards. Despite the larger size, the Force XT XL has a slightly lower physical height (44cm vs 46cm) but is heavier at 21.3kg compared to the Motion XT M's 17.5kg. Both roof boxes share the same maximum load capacity of 75kg and meet key safety standards, but the Motion XT M provides slightly more flexibility with dual-side opening, a feature not explicitly listed for the Force XT XL. If maximum storage volume and length capacity for gear like skis are the priority, the Force XT XL is the superior choice.