Old 02-10-22 | 04:06 AM
  #37  
LeSexyFishorse
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Joined: Nov 2020
Posts: 179
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Bikes: 93 Zunow Di Picce, Nakagawa, Bridgestone Track bike

Originally Posted by microcord
I (in Tokyo) wouldn't assume that it wouldn't have the tool. I just don't know. I do know that the man who runs (well, who is) my favourite LBS didn't/doesn't have a wrench needed for one stage of the installation/removal of a mid-80s Suntour BB. He was very apologetic about this, and recommended that I go to a larger, longer-established and reputable rival a few hundred metres away, which would be likely to have it. It then occurred to me that I might have the tool myself, went home, looked for it, found it, and took it to the shop, where he took out the disintegrating old BB and replaced it with one made by Shimano.

Another problem is that some (otherwise hospitable) shops here politely refuse to handle old bikes (other than for humdrum matters such as changing tyres). (Yet other shops are happy to do so.)
Yes I have experienced this so this is also what I have decided to do. I have ordered the tool and taken it to a shop to have them do the removal and I watch and ask questions so I learn how. I also encounter the same problem here where approaching a weekend or during regular hours that some bike shops wont take small jobs because of the backlog of work they have for upcoming weekend rides from larger groups (there are quite a few in the area). So what happens is if they do take it I have to wait for 1 1/2 weeks for a wheel to get trued. Not being able to ride for a week and a half has inspired me to learn to do it myself and to get a 2nd bicycle .

Quick update:
Wheelset - purchased this Dura Ace wheelset with 7 speed cogs to temporarily replace my suntour one while I look for replacement rims for it. I went on the basis that 7 speed should work with the RD be it suntour or shimano cogs. Rear spacing was listed as 126mm which is the same as I measured on my bike. Rear cogs are 13-21 7 speed, velobase says sprint 9000 wont take more than 23 for indexing so it should work indexed (the click from the indexed is quite satisfying to use ) I have read something about shifts not being crisp for the last 2 upper gears due to spacing issues between suntour vs shimano cogs. Do you guys see any potential compatibility issues?



Brakes
So I read that single pivot brakes are not that good compared to modern dual pivots. So I decided to get some more modern brakes and ended up finding these Ultegra BR 6800's (which have yet to arrive) and some ultegra 6700s (because they were super cheap). Decided to stage the brakes by replacing my existing ones on my SS to see any potential issues. This is what I found:
Suntour issue:
Ultegra 6700 issue:

For the suntour, what happens is that when I depress the brake lever for the suntour brakes, the opposite of the cable side pushes into the rim only. The cable side does not seem to want to compress towards the rim. The rotating attachments have all been lubricated with teflon grease and they move fine when I depress them by hand. All the screws have been tightened. I did notice that the brake cable covers do not come in contact with the barrel adjuster. Can this be causing the issue? The cable seems to be pulling the whole assembly upward instead of in a clamping motion.

For the Ultegra 6700, I noticed that the off cable side (non-drive side) pushes into the rim hard ever so slightly. This causes the rim to move towards the drive side. What this is doing is causing the front fork to violently vibrate under braking even at low speeds (as low as 5km/h) probably because the rim is repeatedly getting pushed out of alignment and fighting back? I can minimize the pressure for a while but it eventually comes back. All bolts are tightened as well on this and the spring tension/return does not feel abnormal (compared to my existing ultegra 5500's). Anyone know what could be causing this?

Aside from these issues, cranks have been polished to mirror shine (pics later when buffed with a buffing wheel (going to a local shop for this since I don't have a wheel). Working on RD/FD next. My goal is to try to get this bike up and running this month and use if while I service my SS. Once my SS is back up I will have her repainted and the final touches put done (fingers crossed).
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