Search found 28 matches

by joshua3
25 Dec 2019, 12:03pm
Forum: Bikes & Bits – Technical section
Topic: Puncture resistant tyres for my road bike
Replies: 20
Views: 636

Re: Puncture resistant tyres for my road bike

I've just changed from 23mm Gatorskins to 25mm Schwalbe Marathon pluses having been impressed with them in a bigger size on my mtb. The ride feels improved to me, more surefooted which is more important than a slight decrease in speed that I am not sure I can really notice.
by joshua3
23 May 2019, 2:13pm
Forum: Bikes & Bits – Technical section
Topic: Dented frame repair
Replies: 25
Views: 1033

Re: Dented frame repair

I read somewhere you can fill the damaged tube with water, plug it solid and put it in the freezer. The expansion pushes the dent out. In theory!
by joshua3
7 Jan 2019, 5:33pm
Forum: Bikes & Bits – Technical section
Topic: How much for a decent bike?
Replies: 114
Views: 4073

Re: How much for a decent bike?

I tend to agree with what has already been said. I have just bought a couple of Reynolds 531C frames off Ebay, one a pure racing type (Graham Weigh) and the other a (built by F. W. Evans) tourer. The dearest was £85. I purchased a used wheelset for £40 and the other bits and pieces for even less. Th...
by joshua3
3 Dec 2018, 11:26am
Forum: Bikes & Bits – Technical section
Topic: The Goldilocks Bike
Replies: 15
Views: 754

Re: The Goldilocks Bike

Fit and geometry are what makes a goldilocks bike. Tailored to your expectations.
by joshua3
1 Jun 2018, 11:23am
Forum: Bikes & Bits – Technical section
Topic: BAUM
Replies: 121
Views: 3708

Re: BAUM

Mental waste of money, should put it in his kids college fund.
by joshua3
1 Jun 2018, 10:36am
Forum: On the road
Topic: Thought they were just saying cycling in London is too white
Replies: 12
Views: 3775

Re: Thought they were just saying cycling in London is too white

Not a racist post, I am just concerned that this is not helpful when the driver should have been demonised for pulling out.
by joshua3
8 Jan 2018, 9:12am
Forum: Bikes & Bits – Technical section
Topic: New commuter - Disc Trucker
Replies: 43
Views: 1947

Re: New commuter - Disc Trucker

I had a disc trucker, it made a fine touring bike loaded up. Unfortunately I found the top tube a bit too long for me, being longer in the legs and shorter in the upper body. Also unloaded I found the frame a bit stiff for comfort. But hay it is a touring bike, a nice frame, well built and finished.
by joshua3
22 Aug 2016, 7:30pm
Forum: Bikes & Bits – Technical section
Topic: Raleigh Headset 26 tpi 1" steerer _ Help!
Replies: 33
Views: 2018

Re: Raleigh Headset 26 tpi 1" steerer _ Help!

http://www.ebay.co.uk/itm/CLEAR-WELD-EP ... SwPcVVpjUC

This stuff is good for two tonnes / 2500 psi. I think I will give this ago.
Thanks Brucey, common sense prevailed in the end :D

Regards

James
by joshua3
22 Aug 2016, 7:11pm
Forum: Bikes & Bits – Technical section
Topic: Raleigh Headset 26 tpi 1" steerer _ Help!
Replies: 33
Views: 2018

Re: Raleigh Headset 26 tpi 1" steerer _ Help!

I have seen countless hot rods, kit cars with shortened output shafts welded exactly as I have described. These see predominantly torsion but also very significant bending loads. I am only going by what I have seen. Any ideas?

Regards

James
by joshua3
22 Aug 2016, 7:04pm
Forum: Bikes & Bits – Technical section
Topic: Raleigh Headset 26 tpi 1" steerer _ Help!
Replies: 33
Views: 2018

Re: Raleigh Headset 26 tpi 1" steerer _ Help!

I am assuming your statement is true prior to stress relief through heating?
by joshua3
22 Aug 2016, 6:42pm
Forum: Bikes & Bits – Technical section
Topic: Raleigh Headset 26 tpi 1" steerer _ Help!
Replies: 33
Views: 2018

Re: Raleigh Headset 26 tpi 1" steerer _ Help!

Can you point to your source regarding residual stress always being at yeild in the material? Considering the Mig 25 was predominantly welded together, how come the structure didn't fail upon loading?
Regards
James
by joshua3
22 Aug 2016, 6:38pm
Forum: Bikes & Bits – Technical section
Topic: Raleigh Headset 26 tpi 1" steerer _ Help!
Replies: 33
Views: 2018

Re: Raleigh Headset 26 tpi 1" steerer _ Help!

oh well, thank Brucey, we shall see. What epoxy have you tested and found to provide the values quoted in your earlier message?
Thanks
James
by joshua3
22 Aug 2016, 6:24pm
Forum: Bikes & Bits – Technical section
Topic: Raleigh Headset 26 tpi 1" steerer _ Help!
Replies: 33
Views: 2018

Re: Raleigh Headset 26 tpi 1" steerer _ Help!

I don't think it is possible to quantify the residual stress from the welding process. My analysis is very pessimistic as it assumes a built in cantilever, the steerer isn't.