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Rotor size or are Avid Juicy 7’s sub-par?

800 Views 7 Replies 5 Participants Last post by  Hangtime
Have a set of Juicy 7’s (160mm rotors) with about 60 miles on them. When comparing them to my Hopes (180mm rotors) on my other bike they do not perform as well.:madman: My question is do I spend the $$ and get 185mm rotors? Or sell them and get another set of Hopes?

Any other experiences?
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Pads probably haven't bedded yet. Take the pads out, sand in a figure-eight pattern, put them back in, do a couple dozen break-in stops.
I would have to agree XSL WiLL about the bedding issue. I used the 160s for a while and they had excellent stopping power after I properly bedded them in. I later switched to a 185 front and found that this size rotor is perfect for my type of riding on my home terrain. So I would think that your comparison of a 180 to a 160 would also play a role in the end result after you get them bedded properly.
They should be bedded in by now.

There can be a substantial difference in power between 180 and 160mm rotors.
Pads

shiggy said:
They should be bedded in by now.

There can be a substantial difference in power between 180 and 160mm rotors.
They should be bedded in by now.

That was my thought. Are the Avids with 185mm rotors on par with Hopes (180mm rotors)? Or would I be throwing $$ away?
DeeZee said:
They should be bedded in by now.

That was my thought. Are the Avids with 185mm rotors on par with Hopes (180mm rotors)? Or would I be throwing $$ away?
I have never ridden Hopes.

I have many, many miles on Avid mechs with 185 rotors and there is more than a noticeable difference compared to the smaller rotors, especially on long descents.

Also EBC Gold pads are more powerful and last MUCH longer than the stock Avids.
Pads

shiggy said:
I have never ridden Hopes.

I have many, many miles on Avid mechs with 185 rotors and there is more than a noticeable difference compared to the smaller rotors, especially on long descents.

Also EBC Gold pads are more powerful and last MUCH longer than the stock Avids.
Thanks. I guess I will take the chance and get the bigger rotors.:eekster:
I have the 160 rotors on my bike and after about 50 miles I took the bike to Mt. Howard at Wallowa lake, Oregon. The only run on the mountain is a 4000' decent, it took me about two hours. well after all that work on my 160s they now stop way better. I thought that they were bedded into the rotors but I found that they just needed a little more time. I am going with the 185 up front. I found that the 160 heats up to fast and fades when real hot. But for now the 160 works real well.
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