How green are the chemicals we put on our bikes to clean, lubricate and repair them? And how much faith should we put in claims of biodegradability and green credentials? Dan Cavallari talks the issues through with Alberto de Gioannini, founder of the Effetto Mariposa brand. His company makes high-quality tools and accessories, and eco-friendly cleaners, sealants and lubricants. Dan looks at the innovative tech behind the products, including the tyre sealant Vegetalex, made from olive waste and described by Alberto as 'like a very bad pesto'.

READ MORE
Giro d'Italia 2025 stage 13 preview: A steep and punchy finale
A testing finishing climb could draw out the GC contenders to claim vital seconds
‘Follow your instincts’ - Have the contenders been shown the blueprint to claim the Giro d’Italia?
Richard Carapaz launched an opportunistic move to claim stage 11 of the Giro d’Italia and climb up the GC
Giro d'Italia 2025 stage 12 preview: A fast finish
An opportunity for the sprinters awaits on a flat run into Viadana
A tight GC and an intriguing parcours: the Giro d'Italia has been left perfectly poised
A rain-soaked time trial has done little to shed light on who will walk away with the maglia rosa in Rome
Giro d'Italia 2025 stage 11 preview: A testing day in the Apennines
A difficult climbing day will pose a tricky physical and tactical test for the general classification contenders
Giro d’Italia state of play: Can UAE hold off the fight back from Red Bull?
Entering week two, the Giro d’Italia is perfectly poised for aggressive riders like Primož Roglič, Egan Bernal and Richard Carapaz to attack UAE’s youngsters, Juan...

READ RIDE REPEAT
JOIN ROULEUR TODAY
Get closer to the sport than ever before.
Enjoy a digital subscription to Rouleur for just £4 per month and get access to our award-winning magazines.
SHOP ROULEUR MAGAZINES