John Curtin. CSJ, London, 2013. Advice on bicycles, loading, and kit, prepared by cyclists, with information on means of getting bicycles to and from Spain, and some route suggestions for Touring Bikes away from the walkers' route.
We currently have no plans to reprint this pamphlet. The Cicerone guidebook Cycling the Camino de Santiago The Way of St James - Camino Francés (published 2019 and available via the CSJ online shop) is a good alternative.