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Post by mattb on May 27, 2008 20:13:35 GMT -5
Marlon and I were looking at my '78 SR last night and I mentioned that I thought it had forks off something else, as the right fork has brackets for a brake caliper. Marlon thought it might be stock, and I googled images and sure enough, all other 78s have them too. It's a nice idea for those who want to modify, but strange for a factory bike to come with it. What do you reckon Yamaha were thinking? Was there an assumption that the bike would be modified, or did they have a stack of XS forks sitting idle?
Matt
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Post by colinjay on May 27, 2008 22:00:12 GMT -5
Leaving your options open its is called!
If you have a look at bike from the 70's you will find that a lot of the were fitted with single front discs, but also had the caliper mounts on the oppposite fork leg. You will find that all the Japanese manufacures did it. The early 900 Kawasaki's are an example, where they came standard with a single disc and the parts for the 2nd disc were listed as factory options, an easy way to reduce the retail cost of the bike but still homolgate twin discs for production racing.
CJ
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Post by mattb on May 27, 2008 23:37:20 GMT -5
And that's one more point goes to Japanese bikes of the 70's...!
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Post by stevec5000 on May 28, 2008 0:09:56 GMT -5
Leaving your options open its is called! If you have a look at bike from the 70's you will find that a lot of the were fitted with single front discs, but also had the caliper mounts on the oppposite fork leg. You will find that all the Japanese manufacures did it. The early 900 Kawasaki's are an example, where they came standard with a single disc and the parts for the 2nd disc were listed as factory options, an easy way to reduce the retail cost of the bike but still homolgate twin discs for production racing. CJ Then why does the 30th Anniversary model SR still have the mounting tabs on the fork legs when the wire wheel only has provision for a disc on one side and you can't mount another disc on the other side of the wheel? |
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entropy
Junior Member
Moving towards disorder
Posts: 30
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Post by entropy on May 28, 2008 2:01:07 GMT -5
I would speculate that Yamaha is employing the same economical manufacturing tactic that KTM is so fond of. They use the same part on many different models of bikes. I would bet that these same SR fork lowers were used on the XS series, or others models, that had a dual disk brake option.
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Post by aero on May 28, 2008 4:23:58 GMT -5
The Hinckley Triumphs of the 1990s were all built like this. Just a couple of different engines and chassis but with different states of tune and dressed differently to give an entire range of bikes. It was the only way the factory could afford to start up with all the models having a massive parts commonality. When you think about it this is good for us as there will be plenty of spares available for future use  |
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Post by colinjay on May 28, 2008 17:35:47 GMT -5
Engineers call it "modular design". You design a series of "modules" be they engines, frames etc, the see how many variations you can build on from those "modules". Just about every major manufacturer of anything in the world today use this method, have a look at your car, refrigerator, TV, anything, and I will garuntee that who ever made it makes at least two suposedly different models that are very similar but use mostly the same parts.
CJ
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Post by StewRoss on May 29, 2008 1:57:01 GMT -5
Heh, heh...I call it 'flexibility'! SR |
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