Search found 87 matches

by Winfried
14 Oct 2019, 12:53pm
Forum: Bikes & Bits – Technical section
Topic: [Brompton BWR] Removing left-hand side bearing race?
Replies: 14
Views: 267

Re: [Brompton BWR] Removing left-hand side bearing race?

Good to know. For other newbies' benefit: Since the cap is likely to be very tight, the solution is to push it out by applying the screwdriver's end from the other side and hit its head with a mallet. DSCN7757.JPG Still, I'll follow your advice and stick to loose balls. It could only work better now...
by Winfried
14 Oct 2019, 12:39pm
Forum: Bikes & Bits – Technical section
Topic: [Brompton BWR] Removing left-hand side bearing race?
Replies: 14
Views: 267

Re: [Brompton BWR] Removing left-hand side bearing race?

Yup, it takes a screwdriver, and the cap/seal (HSA102 "Outer Dustcap") might get damaged in the process:

https://www.youtube.com/watch?v=SbHJHGhynto#t=7m50s

Since I have to order HSA120 Gear Ring Pawl Springs anyway, I'll just add some HSA102 to the list.

Thank you very much!
by Winfried
14 Oct 2019, 12:12pm
Forum: Bikes & Bits – Technical section
Topic: [Brompton BWR] Removing left-hand side bearing race?
Replies: 14
Views: 267

Re: [Brompton BWR] Removing left-hand side bearing race?

Thanks much for the infos. Since I have a couple of spare ones, I don't mind putting a new HSA284 ball cage instead of loose bearing balls, but… how to insert the new one in there? From the outside, first removing that piece I assume is the labyrinth seal and is sitting in the way? Driver.assembly.l...
by Winfried
14 Oct 2019, 11:10am
Forum: Bikes & Bits – Technical section
Topic: [Brompton BWR] Removing left-hand side bearing race?
Replies: 14
Views: 267

Re: [Brompton BWR] Removing left-hand side bearing race?

A bit of cleaning with a Q-Tip revealed two pieces of metal: I assume they are part of the race that broke. The same thing happened on an Alfine 11 gear hub: DSCN7740.JPG So it appears that the RHS also uses an HSA284 ball bearing race, just like on the LHS, which would explain why I saw loose beari...
by Winfried
14 Oct 2019, 9:57am
Forum: Bikes & Bits – Technical section
Topic: [Brompton BWR] Removing left-hand side bearing race?
Replies: 14
Views: 267

Re: [Brompton BWR] Removing left-hand side bearing race?

Bingo! Thank you. -- Edit Since i'm at it, I have another, related question. Strangely, Sturmey-Archer says that even the right-hand side bearing race is a HSA284, although the seven balls are wider on the RHS, are loose, and don't seem specific to SA. BWR.exploded.view.LHS.bearing.race.png http://w...
by Winfried
14 Oct 2019, 9:40am
Forum: Bikes & Bits – Technical section
Topic: [Brompton BWR] Removing left-hand side bearing race?
Replies: 14
Views: 267

[Brompton BWR] Removing left-hand side bearing race?

Hello, On a five-year old BWR gear hub, I need to replace the axle key — its threading went soft, so the control rod no longer holds —, and one of the pawl springs that broke. I'll use the opportunity to replace the ball bearings, but I'm stuck at how to remove the one on the left-hand side . What's...
by Winfried
30 Aug 2019, 10:12am
Forum: Bikes & Bits – Technical section
Topic: Shimano Alfine SG-S7001-11
Replies: 9
Views: 915

Re: Shimano Alfine SG-S7001-11

Hello,

I notice a bit of play in my five year old Alfine 11:



Do you think I need to tighten some part, or the ball bearings need replacement?

Thank you.

Shimano.Alfine.11.SG-S700.exploded.view.png
by Winfried
15 Apr 2019, 9:32pm
Forum: Bikes & Bits – Technical section
Topic: Brompton "chain pusher" cable
Replies: 7
Views: 521

Re: Brompton "chain pusher" cable

Hello, I'll piggy-back on the thread since it's the same subject. I have a 2014 six-speed, ie. BWR Brompton, with a P handlebar. I notice Brompton uses a derailleur cable whose head is smaller than standard derailleur cables. Does a standard derailleur cable fit, or are we really supposed to get the...
by Winfried
6 Mar 2019, 1:51pm
Forum: Bikes & Bits – Technical section
Topic: Shimano Alfine 11 - Longer term reliability
Replies: 734
Views: 150710

Re: Shimano Alfine 11 - Longer term reliability

I have a couple of questions as I'm about to order the parts + tools needed to service the Alfine 11: 1. Besides the three "ball retainers" (parts 13, 18, and 36), what other parts are likely to be worn after years of use? Since parts are cheap, I might as well order them all now. 2. Is th...
by Winfried
14 Feb 2019, 9:11pm
Forum: Bikes & Bits – Technical section
Topic: Shimano Alfine 11 - Longer term reliability
Replies: 734
Views: 150710

Re: Shimano Alfine 11 - Longer term reliability

After removing, cleaning, and putting the Gates sprocket back in place, there's much less creaking when riding… but I can still hear some, and sometimes, it sounds like metal against metal. Maybe the LHS bearing also needs to be replaced.
by Winfried
14 Feb 2019, 2:27pm
Forum: Bikes & Bits – Technical section
Topic: Shimano Alfine 11 - Longer term reliability
Replies: 734
Views: 150710

Re: Shimano Alfine 11 - Longer term reliability

Thanks much for the infos. I always made sure the belt isn't overtightened because I read that it can indeed trigger creaking noise in an IGH. To remove the Gates sprocket, I simply had to apply a bit more force; I was overly cautious: DSCN8744.JPG Since putting the sprocket back in place, I notice ...
by Winfried
14 Feb 2019, 1:22pm
Forum: Bikes & Bits – Technical section
Topic: Shimano Alfine 11 - Longer term reliability
Replies: 734
Views: 150710

Re: Shimano Alfine 11 - Longer term reliability

As for the LHS: Why didn't the core come out after I removed the nut + cone?

What tool is required to pull the "Seal Ring L" (part 35) that's sitting on top of the ball bearing?

IMG_20190213_172947.jpg
by Winfried
14 Feb 2019, 12:44pm
Forum: Bikes & Bits – Technical section
Topic: Shimano Alfine 11 - Longer term reliability
Replies: 734
Views: 150710

Re: Shimano Alfine 11 - Longer term reliability

I'll report what Gates says if/when I get a reply. Hopefully, I won't be told to shell out €75 to get their specific tool :-/ https://shop.carbondrive.net/shop/media/catalog/product/cache/6/image/9df78eab33525d08d6e5fb8d27136e95/c/d/cdtsft.jpg https://shop.carbondrive.net/shop/tools-parts/surefit-to...
by Winfried
14 Feb 2019, 12:12pm
Forum: Bikes & Bits – Technical section
Topic: Shimano Alfine 11 - Longer term reliability
Replies: 734
Views: 150710

Re: Shimano Alfine 11 - Longer term reliability

Yes, I removed the snap ring… and then got stuck because the sprocket wouldn't move with a screwdriver because that part won't let it. AFAICT, it's a CDC sprocket, the middle range between the entry-level CDN and the higher-level CDX. I e-mailed Gates for advice. I can't wait to see what the Alfine ...