Brompton lower stop disc set - MK 3

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Brompton lower stop disc set - MK 3 - QLSDA The rear stop disc stops your Bromptons front wheel from unhooking itself from the chainstay tube when you pick it up.The lower stop disk keeps the rear wheel locked in place in conjunction with the seat post when the Brompton is folded. Using the thread / locknut it can be adjusted to get the optimal position If the gap between the seatpost and lower stop disc is too small, then the seatpost will catch / rub on the lower stop disc when raised lowered if the gap between the seatpost and the lower stop disc is too big then the frame hook (on the front forks) which keeps the bike folded may come un-hooked when you pick up the folded Brompton The lower stop disc (or LSD) assembly supplied here is a Mk 3 type It can be used equally well as a replacement on your bike already fitted with a Mk 3 type as on a bike fitted with a Mk 2 type The assembly consists of the following parts: Plastic lower stop disc (with thread) Washer Nut Bolt (These parts are supplier pre-assembled) It comes complete with a flat washer and a concave washer (in case you lost yours from the rear brake caliper)