General: MORE QUESTIONS!!! (BB-related)

The people of velospace must know what cranks you have to determine what bottom bracket you need. I still wont be much help but Im sure someone will know something.

Ok... A sugino 75 bottom bracket is 109 ISO. Phil bottom brackets can adjust a few mm so something close to 108-110 ISO would work theoretically.

"If you install an ISO crank on a J.I.S. spindle, it will sit about 4.5 mm farther out than it would on an ISO spindle of the same length." -Sheldon

You do the math for JIS, that way its your fault if something goes wrong, not mine.

Can I get some BB help too?

I'm running a 80's Campagnolo Strada Crankset with road BB, my chainline isn't perfect. Does anyone have a suggestion on spindle length?

What guide?... I was thinking this is probably a common problem.

Fixed conversion for good measure.

Comment was stupid as always, nvm and thanks yall.

Posted By: beater_peter_fixFrom what I've learned today, I will be choosing a 103 JIS-taper BB. Any comments?

Comment: I have never heard of someone using that bottom bracket with 75s. The math makes sense though. 109 ISO - 4.5 sheldons = 104.5 JIS +- 2.5 phils = 102-107 JIS which contains 103 JIS.

Phils are easier to install and maintain, more suitable for riding in wet weather, more durable, and all around better for off track riding. Some would claim that a perfectly tuned 75 bottom bracket will have a tiny bit less resistance than any cartridge bearing bottom bracket so it may be better for track racing.

Yeah the only thing I am worried about is the durability of a 75 BB compared to a PW BB. Sealed bearing seam mighty attractive to me.

Also, a little off topic, but are $100 1" threaded headsets really worth $100? The guys at my LBS always tell me to just go with whatever headset because there really can not be much difference as long as its sealed.

*face palm*

As far as loose bearing BBs and headsets go... I don't know how your weather is in the Canadian London, but it rains for about four months straight here. I prefer to overhaul my BB and headset once a year, not once a month (that is an exaggeration, but not much of one).

Plenty of idiots will tell you that the Chris King they just installed on their Pista is sooooo much better than their boring, old headset. 90% of that is pure bullshit. You could replace their old headset with a new one made by anyone and get that kind of reaction. A lot of it is the fact that the new headset wasn't in need of a small overhaul, and the rest is just the brand name placebo effect. On a road bike, a sealed bearing headset of low to reasonable quality is pretty much indistinguishable from one of the highest quality. On a cross or mtb it is easier to tell the difference between $40 and $120 because the headset is used and strained a lot more.

Regarding BBs like the Sug 75; they come with non sealed, crown-style bearings. Is it easy to replace those with sealed bearings, or is everything made to specific measurments which would not allow sealed?

Has anyone used a Campy Strada crankset on there road conversion? If so what BB length did you use?

Posted By: beater_peter_fixhttp://www.chainreactioncycles.com/Models.aspx?ModelID=13663

I don't get it, are you joking? That's way more than you need, not to friggin' mention that Chain Reaction is based in the UK, so you're going to pay $95 for it.

Remember that thing I said about banging my head against a wall when I read your posts?

I want to help you Peter, but you consistently solicit advice and then either totally misinterpret or ignore it completely. It is frustrating.

!!ATTENTION!!
!!ATTENTION!!

Yesterday I called another Phil Wood rep to double check this issue of what size/taper Bottom Bracket to use with the Sugino 75 Crankset. At first the guy I was talking to said they definitely reccomend the 110.5mm ISO taper to get perfect chainline due to the fact that Sugino 75's are techincally an ISO taper, and it just makes sense to put ISO with ISO. I told him I had read instances of people using very different bottom brackets that would have given a better chainline/fit and he was a little surprised. He said he still reccomended the ISO taper and that was that.

HOWEVER. Later on that evening the bro called me back just to tell me that he was playing around in his shop and tried a set of Sugino 75's with the ~PHIL WOOD JIS TAPER 8MM BOTTOM BRACKET~ and told me that they fit much better with a better chainline than his own reccomended ISO taper. He thanked me for the question and said he will now reccomend the JIS taper.

I haven't tried this myself so I can't say for sure, but considering this information came from a Phil Wood technician who tried it first hand, I would consider referring back to this anytime someone has a question similar to mine. I know that I myself will be choosing the JIS taper now.

Yes.