BTwin 500 Cycling Bib Shorts

BTwin's 500 Cycling Bib Shorts are designed for regular riding and continue the French giant's reputation for dependable kit at favourable prices. Sandwiched between the 300 and 700 series, the 500 bibs are what I'd class as staples for everyday training and rides up to around the 50-mile mark. Much past 65 and I've found the otherwise compatible pad a little wanting; especially when riding my more upright tourer.

A penny shy of £25 buys you lightweight though reassuringly rugged six-panel polyamide/elastane mix shorts, while the mesh bibs are 100% polyester. Tactile elastic and silicone leg grippers do their job impeccably – better than some big brands' mid-range offerings – with no hint of discomfort or unsightly branding.

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Three seasons' tog weight extends their horizons beyond spring and summer road riding when partnered with leg warmers, and ours are faring very well several weeks in, in spite of regular subjection to singletrack and forest detours. Despite some very cool, showery rides, drying times are favourable – 20 minutes, aided by a gentle breeze. Bargain on similar following tours de Zanussi.

The mesh straps are another plus. These feel a little thin but conform beautifully, holding everything in situ while still offering unrestricted movement. The mesh also contributes to efficient moisture eviction – at least, I've never felt unduly soggy following spirited turbo trainer sessions or longer outings in changeable temperatures, those days when it starts overcast and cool, calling for long-sleeve baselayer and gilet, roasting hot 20 minutes into the ride...

Padded inserts are deeply personal matters. For the most part, I reckon Decathlon has got the balance right here. It's a medium-density polyester with an anti-bacterial component which, in common with its 300 sibling (the non-bib version anyway, tested here), feels slightly loaf-like and less compliant than other mid-range pads but soon smooths out, inconspicuously.

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I've found it comfortable for 40-50 road miles and the anti-bacterial component keeps odour well within socially acceptable limits. A couple of 70-mile outings on different, though very familiar, saddles left me feeling sore and chafed, which hasn't been the case with the brand's 700 series tested a couple of seasons back (and still rated highly in our latest test, read it here, though not as highly as the Aerofit Bib Shorts). 

Summing up, I'd suggest serious mile munchers or those looking towards their first big ride should spend a good bit more, but for group rides and training, the 500 bibs offer a reliable performance.

Verdict

Decent design for everyday training and 50-milers