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S40 Brakes 300mm to 320mm

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Old Mar 31st, 2020, 09:37   #61
domhart10
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Nice work!

Yeh let them bed in and will be interesting to see if you notice a difference. For me even with new pads / discs / brake fluid etc the upgrade was minimal to warrant the cost of getting these.

Am actually looking for a big brake kit now so mine will be up for sale soon if anyone wants them.
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Old Mar 31st, 2020, 12:13   #62
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Originally Posted by domhart10 View Post
Nice work!

Yeh let them bed in and will be interesting to see if you notice a difference. For me even with new pads / discs / brake fluid etc the upgrade was minimal to warrant the cost of getting these.

Am actually looking for a big brake kit now so mine will be up for sale soon if anyone wants them.
As I understand the physics of it. As soon as the brakes are sufficient to lock the wheels at high speed, the advantage of bigger brakes is larger thermal capacity, bigger braking surface and so less fade, more endurance and longer life on the road. Downside is bigger rotating mass and unsprung weight. I suppose technically, you want the smallest brakes possible, that don't suffer fade or too short a service interval for your usage.
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Old Mar 31st, 2020, 14:20   #63
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As I understand the physics of it. As soon as the brakes are sufficient to lock the wheels at high speed, the advantage of bigger brakes is larger thermal capacity, bigger braking surface and so less fade, more endurance and longer life on the road. Downside is bigger rotating mass and unsprung weight. I suppose technically, you want the smallest brakes possible, that don't suffer fade or too short a service interval for your usage.
Aha but I've done it for aesthetics
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