Brooks Cambium C17

The Brooks Cambium C17 is Brooks' answer to the main complaint about the classic B17: water and break-in. The Italian factory in Padua developed the Cambium as an entirely new formula — no tanned cowhide but a 3 mm slab of natural rubber, vulcanised together with organic cotton fabric and mounted on an aluminium frame with steel rails. Visually it is a Brooks, but in use it is a very different animal. You do nothing to break it in — take it out of the box, bolt it on, ride 100 km a day without saddle soreness. For riders who until now found the B17 story too demanding, this is the logical upgrade on a Koga Worldtraveller or Santos Travelmaster that lives outside in all weather. The character differences with the B17 are subtle but important. Where tanned leather develops a personal imprint after 500 km, Cambium rubber stays symmetrical and universal — what you get is what you keep. For some that is a loss (the B17 literally becomes 'your' saddle), for others a gain (no break-in, no maintenance, stable performance). The 162 mm width is narrower than a B17 and suits a slightly sportier position — think trekking bike with moderate forward lean. On long rides (60+ km tours) the natural rubber flex gives a unique cushioned feel that comes surprisingly close to a moulded B17, without ever delivering the same anatomical adaptation. Weight is 405 grams — between the B17 (520 g) and modern synthetic saddles (300 g).

Against rivals the Cambium stands alone in its category. The original B17 loses on weather resistance and instant comfort but wins on anatomical adaptation and pure lifespan (the B17 reaches 100,000 km, the Cambium realistically 50,000 km). The Specialized Power Mimic is more modern, ergonomically sharper and better for road bikes, but feels like plastic where the Cambium feels like a natural material. The Selle Royal Respiro offers more immediate comfort for half the price, but lasts at least 10x less. The real question is whether 40 euros more than a Respiro, and 10 euros less than a B17, is worth the weather resistance and instant usability. For commuters parking outside at NS bike sheds with no roof: absolutely yes. For classic tourers who love the break-in magic: no, stick with the B17.

Honest about the weaknesses: the main loss is the moulding magic of tanned leather. Cambium has a fixed shape that does not grow with you; if your sit bones do not quite fit, you will keep feeling it. Second point: below -5°C the rubber-cotton briefly stiffens (not uncomfortable, but noticeable). Third point: in strong summer sun the rubber can show small cracks after 3-4 years — cosmetic, not functional. Final point: it is still a narrow saddle for upright postures; the wider Cambium C17 Carved (with cutout) is then the better choice. But for the target audience — commuters and tourers who prioritise weather resistance over personal moulding — there is no better saddle under 100 euros.