Search found 51 matches

by cromo
1 Apr 2019, 9:59am
Forum: Bikes & Bits – Technical section
Topic: Bar end friction shifters
Replies: 33
Views: 2056

Re: Bar end friction shifters

I use Dia-Compe friction BE shifters on a 9 speed bike. It does take time to become familiar with them. As for operating them, I agree with Brucey, I hold my hand around the handlebar and use the third and fourth finger or the palm to pull or push on the levers. This allows a more controlled movemen...
by cromo
10 Sep 2018, 1:10pm
Forum: Bikes & Bits – Technical section
Topic: shimano 105 5600 cones
Replies: 13
Views: 641

Re: shimano 105 5600 cones

If there is play in the freehub then it may be worth dismantling it and removing shims to eliminate play.
by cromo
10 Sep 2018, 12:16pm
Forum: Bikes & Bits – Technical section
Topic: shimano 105 5600 cones
Replies: 13
Views: 641

Re: shimano 105 5600 cones

Have a look at
http://si.shimano.com/pdfs/ev/EV-FH-5600-2458C.pdf
I think it answers your question about freehubs.
by cromo
4 Apr 2018, 8:25am
Forum: Bikes & Bits – Technical section
Topic: Moulton TSR rear pivot
Replies: 201
Views: 10951

Re: Moulton TSR rear pivot

My engineering knowledge is limited, but I thought that oil filled bronze bushes as described above, were mainly intended for use in high speed applications like electric motors where radial loads are low and further lubrication is not necessary. Would a solid bronze or brass bush be better especial...
by cromo
14 Jan 2018, 11:59am
Forum: Bikes & Bits – Technical section
Topic: Moulton TSR rear pivot
Replies: 201
Views: 10951

Re: Moulton TSR rear pivot

I know nothing about Moulton bicycles and I am assuming that the bronze bush is plain inside. So, I was wondering if the bronze bush had grooves in it, running in the same direction as the sleeve, then would those grooves allow grease to reach the bearing surfaces more efficiently. Grooves could be ...
by cromo
31 Oct 2017, 8:42am
Forum: Bikes & Bits – Technical section
Topic: 105 front hub - seals interfering with bearing adjustment
Replies: 12
Views: 2639

Re: 105 front hub - seals interfering with bearing adjustment

I would be tempted to try assembling the bearing with the seal, but leave out one ball bearing per side. Maybe you have already tried this?
by cromo
31 Aug 2017, 11:23am
Forum: Bikes & Bits – Technical section
Topic: Cotter Pin Press/Removal Tool
Replies: 18
Views: 1654

Re: Cotter Pin Press/Removal Tool

I have in the past used a car ball joint separator to remove cotter pins e.g. Clarke CHT222, available from Machine Mart. I am not guaranteeing success with this tool in your case but it may be an option for you.
by cromo
8 Aug 2017, 8:04am
Forum: Bikes & Bits – Technical section
Topic: which Loctite for loose headset cup?
Replies: 21
Views: 1369

Re: which Loctite for loose headset cup?

A long time ago I had a loose headset cup. I measured the headtube and cups with vernier calipers and used steel shim to make up the difference and give the correct interference fit. I did use a headset press for the installation and was expecting the metal shim to crease or tear as the cup was inse...
by cromo
24 Apr 2017, 12:01pm
Forum: Bikes & Bits – Technical section
Topic: Replacement bolt for Hope seat post clamp
Replies: 14
Views: 1190

Re: Replacement bolt for Hope seat post clamp

Slipping seatposts are very annoying! I did not want to use excessive force on the seatpost clamp bolt, so I purchased a seatpost clamp and an appropriate seatpost shim and cut the shim to fit inside the extra seatclamp. The size of the shim is obviously determined by your seat post diameter and the...
by cromo
11 Apr 2017, 2:29pm
Forum: Bikes & Bits – Technical section
Topic: Easier front shifting
Replies: 21
Views: 1007

Re: Easier front shifting

In my experience top swing derailleurs have "weaker" springs than conventional swing types. They seem to take less effort to shift. Maybe you are already using top swing?
by cromo
12 Jan 2017, 12:04pm
Forum: Bikes & Bits – Technical section
Topic: Plastic washer on canti brake pivot- purpose?
Replies: 15
Views: 1211

Re: Plastic washer on canti brake pivot- purpose?

I think that until you get the brakes running smoothly and without friction then getting them balanced using the adjusting screw is probably going to be very difficult. On many bikes the cantilever boss has 3 holes for the return spring to engage, if you cannot get the brakes balanced then maybe usi...
by cromo
11 Jan 2017, 10:50pm
Forum: Bikes & Bits – Technical section
Topic: Plastic washer on canti brake pivot- purpose?
Replies: 15
Views: 1211

Re: Plastic washer on canti brake pivot- purpose?

I have not used M560 cantilevers but have used M737 cantis which I believe are very similar. The plastic shroud I always thought was basically a dust cap, They do split and are easily lost. I have not used M737 cantis for a while but I think you can remove the dust cap and then carefully lever off t...
by cromo
7 Jan 2017, 2:05pm
Forum: Bikes & Bits – Technical section
Topic: Curing A Loose Headset
Replies: 25
Views: 1480

Re: Curing A Loose Headset

I've used a similar extender and was also constantly getting "play" in the headset bearings. In my case the diameter of the extender was a bit small and it therefore wobbled inside the steerer tube. This gave the impression of slack headset bearings. If I applied the front brakes and rocke...
by cromo
12 Aug 2016, 7:48pm
Forum: Bikes & Bits – Technical section
Topic: Straightening rear derailleur
Replies: 12
Views: 1301

Re: Straightening rear derailleur

Returning to your original problem, if you want to bend the cage then I think I it might be better to remove the derailleur from the bike, remove the cage and jockey wheels and do any bending carefully "on the work bench". This avoid putting stress on other parts of the derailleur (as othe...
by cromo
12 Aug 2016, 7:43pm
Forum: Bikes & Bits – Technical section
Topic: Straightening rear derailleur
Replies: 12
Views: 1301

Re: Straightening rear derailleur

You need to check how your chain runs between the two derailleur pulleys. There is a metal tab and the chain should run on the other side of it. At the moment I think the chain is catching on the metal tab.