This from customer Andrew who comments on his Ventoux box for his particularly large Thorne:

“The box swallows my bike (Thorn Mercury 58cm Long Frame) easily and holds it securely by quick-release clamps on the dropouts. The wheel-bags add extra padding. The box top latches securely with four clamps. Once closed, the box feels really solid and rolls easily on its castors. At last I feel confident that my bike is safe with the baggage handlers!”