Disc brake advice needed!!

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Just getting my excuses in early mate!

Sent my application off t’other day, I’ll be riding Sat and Sun.

Looking forward to it already !
 
I don't think they would let me out on the Sat, but I think I have a BHR race there in April.

Just paid up for The Bikers Classic and ferry so I have lots to get excited about.
 
baz said:
Each to their own I guess!!!
I wonder why motorcycle manufacturers bother making the hub a tight fit to the disc?
We might as well have discs with ragged or square holes in the middle !!
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Many makers do not make the hub a tight fit to the disc. Unless the hub/disc are physically locked together in some manner, the hub/disc relationship has no affect on the braking. The bolts/studs are what holds the disc in place. Absent a hub/disc locking type of attachment, no matter how snug the disc fits around the hub, the hub/disc clearance alone - regardless how close - could not prevent you turning the disc on the hub by hand, let alone resist braking forces. I would not be concerned at all about hub/disc clearance as long as the disc bolts properly in place and is the correct diameter/thickness for the application.
 
I would make sure to fit the hub closely, even if you have to make a centering ring. It is more critical for bikes, because cars that have a lug-centric design have tapered lug nuts that mate into female tapers on the wheel. This locates them without a close fit on the hub. I've raced a Miata like this for 15 years, no problem. Iput a Ninja disk on my bike (Avatar) and made sure it located hub centrically.
 
MexicoMike said:
Many makers do not make the hub a tight fit to the disc. Unless the hub/disc are physically locked together in some manner, the hub/disc relationship has no affect on the braking. The bolts/studs are what holds the disc in place. Absent a hub/disc locking type of attachment, no matter how snug the disc fits around the hub, the hub/disc clearance alone - regardless how close - could not prevent you turning the disc on the hub by hand, let alone resist braking forces. I would not be concerned at all about hub/disc clearance as long as the disc bolts properly in place and is the correct diameter/thickness for the application.
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It's just my opinion, personally I would prefer the disc to fit to the hub
Whenever I fit a disc from one bike to another as I have done many times including the Norton I ride at the moment I always make a perfect fitting adapter
As I said each to their own
 
Don't be lousy. Go and buy the correct disc. Front brakes and crash helmets have a lot in common. In the old days of European road racing, drum front brakes and pudding basin crash helmets killed a lot of guys. I would not even use a fitting adaptor if the disc is wrong for the hub. Would you buy a pudding basin crash helmet because it was cheap ?
 
storm42 said:
I don't think they would let me out on the Sat, but I think I have a BHR race there in April.

Just paid up for The Bikers Classic and ferry so I have lots to get excited about.
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Ah, will be seeing you there then, waiting in line for the gates to open.. :-)
 
I have watched Bikers' Classic on Youtube. It looks like fun, but it appears most of the guys are not very focussed. When you actually race you concentrate ten tenths, so it is probably safer. Even when I practice with my Seeley, I ride with determination, because if you don't do that it will wallow in corners. If you ride it hard and keep gassing it, it handles superbly. I think a lot of guys at Bikers' Classic might be riding fast road bikes, not genuine racing bikes. I watched one on-board video where the rider was all over the place. If you did that during a race, you'd probably be knocked off your bike.
 
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It is actually pretty funny. When I drive my car on public roads and there are two lanes, I sometimes drive in both of them at once. My kids often tell me to pick a lane.
 
acotrel said:
I have watched Bikers' Classic on Youtube. It looks like fun, but it appears most of the guys are not very focussed. When you actually race you concentrate ten tenths, so it is probably safer. Even when I practice with my Seeley, I ride with determination, because if you don't do that it will wallow in corners. If you ride it hard and keep gassing it, it handles superbly. I think a lot of guys at Bikers' Classic might be riding fast road bikes, not genuine racing bikes. I watched one on-board video where the rider was all over the place. If you did that during a race, you'd probably be knocked off your bike.
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You are not wrong, it is a fantastic event but it is a parade, big skill differences. I will try and video the Saturday ride round the old road circuit for you this year, that can be an eye opener. :)
 
Anything which can get guys to try riding on a race circuit cannot be all bad. If you always ride on public roads, you become too conditioned to accepting restraint. Personally, I raced a fair bit back in the old days - however I would not attempt to ride an R1 Yamaha or Honda Fireblade on a race circuit. I don't believe in riding faster than the speed at which I am prepared to step off.
 
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