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by Brucey
22 May 2018, 11:46am
Forum: Bikes & Bits – Technical section
Topic: Pedals for a newbie
Replies: 27
Views: 740

Re: Pedals for a newbie

everyone learns at different rates. One thing I would say is that a good number of people are OK whilst they are thinking about it, ride safely for a few weeks even, and then stop thinking about it. That is when they fall off. Deffo a good idea to wind the tension down to the minimum and it is also ...
by Brucey
22 May 2018, 11:41am
Forum: Bikes & Bits – Technical section
Topic: Shimano Alfine 11 - Longer term reliability
Replies: 620
Views: 127730

Re: Shimano Alfine 11 - Longer term reliability

the force required to push the pawl out of engagement will increase whenever you are pushing hard on the pedals. The force through the shift servo will also increase in a similar way. There is no limit to either force, they just scale with pedal pressure (and input gear ratio). However there is very...
by Brucey
22 May 2018, 10:48am
Forum: Bikes & Bits – Technical section
Topic: Shimano Alfine 11 - Longer term reliability
Replies: 620
Views: 127730

Re: Shimano Alfine 11 - Longer term reliability

the loading within the pawl control parts is effectively unlimited once the shift servo is engaged; the pawl goes 'overcentre' to provide reliable drive in any one gear and may need a very high force to push it out of engagement with the sun pinion. I don't recall there being any spring like element...
by Brucey
22 May 2018, 10:39am
Forum: Bikes & Bits – Technical section
Topic: Alfine 8-speed ?clutch? problem in gears 2, 3, 4
Replies: 50
Views: 2726

Re: Alfine 8-speed ?clutch? problem in gears 2, 3, 4

the drive to the hubshell is taken through the small roller clutch (at the left end of the internal) in gears 1,5 and through the central roller clutch in gears 2,3,4,6,7,8. The roller clutches are passive in nature; whichever one is moving fastest transmits the drive. In gears 1,5 the central clutc...
by Brucey
22 May 2018, 10:18am
Forum: Bikes & Bits – Technical section
Topic: Campag Athena groupset changing the rear cassette and rear derailleur to a wider block
Replies: 2
Views: 82

Re: Campag Athena groupset changing the rear cassette and rear derailleur to a wider block

where are you going exactly? The roads vary a bit but in some areas there are virtually none with steep gradients, just long like Jezrant says.

cheers
by Brucey
21 May 2018, 10:21pm
Forum: Bikes & Bits – Technical section
Topic: Alfine 8-speed ?clutch? problem in gears 2, 3, 4
Replies: 50
Views: 2726

Re: Alfine 8-speed ?clutch? problem in gears 2, 3, 4

in your photos all the sun locking pawls are fully retracted so any wear on them cannot be seen. This position (gear 1) is the correct one to allow removal of the planet cage assys; that you managed it by working the gear selector is probably a coincidence; the most common problem with removing the ...
by Brucey
21 May 2018, 8:30pm
Forum: Bikes & Bits – Technical section
Topic: Tyre Longevity
Replies: 14
Views: 331

Re: Tyre Longevity

some slick tyres have wear indicators (eg little blind holes) in the tread rubber. The idea is that when you cannot see them any more, the tyre is worn out, in the same way as a treaded tyre is worn out when there is no tread left. Tyres that have puncture protection tend to show the special layer w...
by Brucey
21 May 2018, 8:01pm
Forum: Does anyone know … ?
Topic: Silver soldering
Replies: 7
Views: 321

Re: Silver soldering

For soldering what materials? It's an airflow slide on a bbg. It consists of a very thin steel disc and a steel rod (approx 1/8 in dia) which detached itself from the disc. Originally the rod appears to have been spot welded to the disc (very tiny spot welds). could it be that the part could be rep...
by Brucey
21 May 2018, 7:53pm
Forum: Bikes & Bits – Technical section
Topic: Retro thoughts
Replies: 43
Views: 1569

Re: Retro thoughts

mea culpa, those universals are not my brakes.... :shock: :oops: However many older brakes have arms which are not anodised and will therefore benefit from a good polish using a suitable method. I would expect those universals to have been buffed on a wheel but if they are not too bad to start with ...
by Brucey
21 May 2018, 7:40pm
Forum: Bikes & Bits – Technical section
Topic: Gearing advice sought please.
Replies: 4
Views: 204

Re: Gearing advice sought please.

STIs that were launched pre 2008 have the cable pull that works best with cantis. If you want to use a later model STI then a high MA canti (such as BR-CX70) is an option, but these STIs are mostly 9s or higher. Road triple STIs will only work road triple front mechs directly or MTB triple front mec...
by Brucey
21 May 2018, 7:16pm
Forum: Bikes & Bits – Technical section
Topic: Another Shimano lockring question - Ultegra 11 spd
Replies: 20
Views: 323

Re: Another Shimano lockring question - Ultegra 11 spd

in fairness you don't know that it has made 'no difference' unless you have actually measured the clamping force on the sprockets.

cheers
by Brucey
21 May 2018, 7:12pm
Forum: Bikes & Bits – Technical section
Topic: Tyre Longevity
Replies: 14
Views: 331

Re: Tyre Longevity

often the slick model is a bit lighter than the treaded model which suggests that the rubber is also a bit thinner in the slick model.

cheers
by Brucey
21 May 2018, 6:42pm
Forum: Bikes & Bits – Technical section
Topic: Another Shimano lockring question - Ultegra 11 spd
Replies: 20
Views: 323

Re: Another Shimano lockring question - Ultegra 11 spd

At least some Ultegra lockrings are aluminium rather than steel, which may be what the emperor means by ‘delicate’. More daft gram-saving … With any screw thread, I start by applying slight axial pressure while screwing it backwards until it clicks, then screwing it in. That way you know you’re not...
by Brucey
21 May 2018, 11:20am
Forum: Bikes & Bits – Technical section
Topic: SA XRD 3 adjustments
Replies: 1
Views: 58

Re: SA XRD 3 adjustments

the purpose of the adjustment is to create a running clearance for the internals. 'Finger tight' may seem vague but even if you use a tool on it you won't often get it even another 1/4 turn tighter than that, which is the finest increment the adjustment can be set to if you use a tabbed washer (like...
by Brucey
21 May 2018, 11:11am
Forum: Bikes & Bits – Technical section
Topic: Another Shimano lockring question - Ultegra 11 spd
Replies: 20
Views: 323

Re: Another Shimano lockring question - Ultegra 11 spd

I have examined hundreds of lockrings and they are certainly not as you infer them to be. If you were to do as I suggest you might find that your risk of cross-threading them is greatly reduced.

cheers