Description
Hyosung has discontinued the original rear brake master cylinder for the GD250 series, but we’ve sourced a high-quality aftermarket replacement that keeps your bike stopping safely and reliably. 🏍💥
Unlike the cheap £10 universal clones found on auction sites, this cylinder is precision-made and road-tested by our community of Hyosung riders. It’s a direct-fit solution that mounts to your bike’s frame without any cutting or modifications.
Key Features:
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Tested on GV650/GT650 builds – if it can handle bigger bikes, it will easily handle the GD250!
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2 design variations: The manufacturer sometimes uses “fat” bolt holes (same as OEM) or slimmer ones (which require thinner bolts).
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Mounting bolts NOT included – we recommend checking your old bolts and replacing them if necessary.
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No universal junk – only trusted aftermarket parts that we’ve fitted on our own workshop bikes.
🛠 Fitting Instructions:
Installation is simple – just swap out the old unit.
💡 Brake Safety Tips:
Brakes are one of the most important components on any motorcycle. If you’re not experienced with bleeding brake systems or aligning calipers, we strongly recommend letting a professional garage handle the installation. A poorly bled brake can cause spongy braking or complete failure – don’t take that risk.
Regular maintenance, such as changing your brake fluid every 1–2 years, checking your pads for wear, and ensuring there are no leaks or air bubbles in the system, will keep your braking sharp and safe. Don’t forget that UK MOT test centers will be testing your brakes to make sure they are sharp, so it starts with the master cylinder!
Model Fitment:
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GD250R (2014–2020)
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GD250N (2014–2020)
OEM Reference Numbers: 69609HN9100, 69609HN9101, 69609HP9502, 69609HP9503, 69609HC9700






















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