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Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

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  #31  
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Rhode Warrior Rhode Warrior is offline
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Oh and the front brake sucks. New rotor, pads, master cylinder and braided brake line and rebuilt caliper. No air in the line, nothing wrong with it, just a shitty setup. What have other people done for an upgrade. The other problem I have is the OEM seat doesn't have enough padding. It's crap. Going to my an aftermarket
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  #32  
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Is every inch of brake line and connector new? When my 1978 was like that there was some crud accumulated in a connector in the lines.
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  #33  
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Quote:
Originally Posted by IronMick View Post
Is every inch of brake line and connector new? When my 1978 was like that there was some crud accumulated in a connector in the lines.
Yes everything is new except for the caliper which I flushed and rebuilt. No braking power and very wooden feel
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  #34  
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New rotor.
Some rotors come with a coating to stop them from rusting in starage. That needs to be cleaned off before you use the brakes.
But not all of them .......

Apart from that these aren't dual 4 piston Brembo's. They are a step up from the old single leader drum brake. But other companies actually make brakes that work.

If you do manage to make the brakes work the suspension deficiencies will then rear their ugly heads. Other companies of course managed to make suspension systems that work.
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  #35  
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Quote:
Originally Posted by Ferrous Head View Post
New rotor.
Some rotors come with a coating to stop them from rusting in starage. That needs to be cleaned off before you use the brakes.
But not all of them .......

Apart from that these aren't dual 4 piston Brembo's. They are a step up from the old single leader drum brake. But other companies actually make brakes that work.

If you do manage to make the brakes work the suspension deficiencies will then rear their ugly heads. Other companies of course managed to make suspension systems that work.
I haven't really searched yet, but if I can't find a direct bolt on, I'll just get a good 4 or 6 pot and make my own setup.
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Look for Fab Kevin, he makes brake swap kits.

I build my own.
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If your serious about spending time and money to improve things I suspect the larger tube Evo front ends can be adapted.
I'm sure if that's an easy enough swap that someone on here will have done it already.

As time went on (after the discovery of telescopic forks) people worked out that larger diameter tubes was better in engineering terms. That is, they didn't bend as much. While they decided to put 41 mm forks on the Big Twins they K's and then Sportsters only got 33.4 mm forks. With lightweight thin wall tubing. (By my standards)

I think by about the second year of the Evo they went to better forks. Brakes still won't be up to Italian, German or Japanese standards but then, unless your racing they will probably be adequate.

And, ..... Once you can lock the front wheel at speed there is no point in further braking power. A well set up drum brake will stop you as fast as a disc. It just won't do it repeatedly. On the road - not much of a problem. On a race track it is a problem.

Sportsters aren't road race bikes. We had a series out here for them much like Formula V (for Volkswagen engines cars) But if they had let any other make into the races it would have been a farce. In fact, it was much like watching Formula V. Not very interesting. Only fun came from spotting the cheats.

Spend money on your tires. Look after them. They are probably a lot more important than braking force. Your certainly not going to be able to take advantage of any good brakes you put on there without commensurate improvements over the stock tires.

It's a little hard to buy decent tires now simply because we run obsolete wheel sizes. Not that many old fools want to race these old bikes so the tire companies don't really cater for us. The best way to find out what is currently available is to attend a historic bike race meet and see what the top guys are currently running. (And ask them where to buy them)

Go and have a look at the tires on any Jap 600 cc sports bike and then have a look at your tires. Notice much difference ?
The tires are the real reason they can stand their bike on their nose.
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