Search found 298 matches

by martinn
24 Jul 2019, 4:15pm
Forum: Family Cycling
Topic: Marioitts way- where to start?
Replies: 6
Views: 328

Marioitts way- where to start?

Hi all I am going to Norfolk on holiday, and looking at riding on the Marriott way with the family. We cant do the whole in one day, (kids are 11,8 and 4 and 4) so I am looking to drive, and park somewhere, and do a there and back route. On Google maps there is a Car Park (Small) near Lenwade. So I ...
by martinn
25 Jun 2019, 9:24pm
Forum: Bikes & Bits – Technical section
Topic: Isla 24" geometry for a bamboo build
Replies: 14
Views: 539

Re: Isla 24" geometry for a bamboo build

Hi Will,

If your still looking I found someone with a 24" Benin

Martin
by martinn
25 May 2019, 5:21pm
Forum: Does anyone know … ?
Topic: Checking gpx routes
Replies: 18
Views: 725

Re: Checking gpx routes

Hi Mick, to explain myself better, the way the route should be planned for an Audax is that the minimum distance between the controls in the correct order, will be the minimum distance for that ride so for a 200km event, the GPX file may be 215km but the minimum distance possible measured between th...
by martinn
25 May 2019, 1:01pm
Forum: Does anyone know … ?
Topic: Checking gpx routes
Replies: 18
Views: 725

Re: Checking gpx routes

Hi Mick, I once spent a 200 audax continually overtaking the same rider, in the end I worked it out. She had much better "control" discipline than I did :lol: :lol: The route for an organised audax is never mandatory, you just have to hit all the controls, so those riders may have been tal...
by martinn
30 Apr 2019, 10:25pm
Forum: Bikes & Bits – Technical section
Topic: Isla 24" geometry for a bamboo build
Replies: 14
Views: 539

Re: Isla 24" geometry for a bamboo build

Hi Will,

Not a Benin 24, but my daughter has a Luath 24. your welcome to come round and take whatever measurements you need, if that's any use to you

Regards

Martin
by martinn
26 Apr 2019, 6:34am
Forum: Does anyone know … ?
Topic: Custom Bike Build - Educate Me Please
Replies: 27
Views: 1116

Re: Custom Bike Build - Educate Me Please

Hi Witterings Generally speaking a custom bike would probably be referring to a custom made to measure frame. Most commonly in steel, any type, probably followed by titanium. A few people can do custom carbon frames. You also spec everything else on the bike, including the paint. Cost of the frame.....
by martinn
12 Apr 2019, 7:26am
Forum: Bikes & Bits – Technical section
Topic: Campag Athena groupset changing the rear cassette and rear derailleur to a wider block
Replies: 24
Views: 1760

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

Gfk_velo

Thanks for the definitive advice, at least I know what is possible if I go along the adaptation route

Thanks
Martin
by martinn
11 Apr 2019, 8:26pm
Forum: Bikes & Bits – Technical section
Topic: Campag Athena groupset changing the rear cassette and rear derailleur to a wider block
Replies: 24
Views: 1760

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

Hi Pete, I heard this before, my worry is the pull on the Athena is not quite linear ( I may have got this wrong) as the spacers between the sprockets are not the same width.
What chain do you run? Campag or Shimano?

Martin
by martinn
9 Apr 2019, 11:34am
Forum: Bikes & Bits – Technical section
Topic: Campag Athena groupset changing the rear cassette and rear derailleur to a wider block
Replies: 24
Views: 1760

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

Thanks Brucey from what I can get off the campag site and also the Velotech website, unless I am reading things wrong, the interchangeability is very limited, on what is recommenced. I am running 2014 Athena, with 2015 shifters So using Potenza seems to be out as the pull ratios are different accord...
by martinn
8 Apr 2019, 9:42pm
Forum: Bikes & Bits – Technical section
Topic: Specific Fixed gear chainring will I notice the difference?
Replies: 18
Views: 620

Re: Specific Fixed gear chainring will I notice the difference?

Strange that you should mention Spa zircle, that's what I have been using up to now.
Just thought I would ask if something more specific was worth while
by martinn
8 Apr 2019, 12:59pm
Forum: Bikes & Bits – Technical section
Topic: Specific Fixed gear chainring will I notice the difference?
Replies: 18
Views: 620

Re: Specific Fixed gear chainring will I notice the difference?

Thanks all for the comments The cranks are spa XD touring cranks, with the view when I set it up as an experiment to see if I could enjoy/ ride fixed I would sort it out later..... So tried to reuse as much existing equipment as possible, hence the current cranks. I have gone through three chains in...
by martinn
8 Apr 2019, 10:43am
Forum: Bikes & Bits – Technical section
Topic: Specific Fixed gear chainring will I notice the difference?
Replies: 18
Views: 620

Specific Fixed gear chainring will I notice the difference?

Hi All, I have been running my fixed gear bike for nearly 2 years now (All year round commuter), and after two winters, the current chain ring is showing some wear. This is a standard 110BCD Road bike ring. I am looking at changing to a "proper" fixed Chain ring, but I will have to purchas...
by martinn
31 Mar 2019, 10:16pm
Forum: Bikes & Bits – Technical section
Topic: Campag Athena groupset changing the rear cassette and rear derailleur to a wider block
Replies: 24
Views: 1760

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

Sorry for the thread resurrection

I am now in the position to need to replace my rear cassette. As Athena is no longer made, is Potenza a possible match?
If I got the long Potenza rear derailleur as well could I run an 11-32?
Otherwise what Campag 11-29 would work?

Many thanks

Martin
by martinn
20 Feb 2019, 8:55am
Forum: Does anyone know … ?
Topic: Long tail cargo (possibly e-bike), or regular bike for commuting with 1 child in hilly town
Replies: 11
Views: 1682

Re: Long tail cargo (possibly e-bike), or regular bike for commuting with 1 child in hilly town

Hi, if you are in Bristol, you could pop along to Rob at really useful bikes.....( In Yate) He might have something you can look at / ride. However I think he has reduced what he sells, and concentrates on cargo bikes. Alternatively we got our etrike from https://www.kidsandfamilycycles.co.uk/m.inde...
by martinn
9 Feb 2019, 3:28pm
Forum: Bikes & Bits – Technical section
Topic: Chainline for a FLip/ flop hub
Replies: 5
Views: 990

Re: Chainline for a FLip/ flop hub

The freewheel was 2mm out in my case. Seems a bit suboptimal that the wheels are not made to work in the fashion that most people would expect/ want them to. Is there a sensible reason they are made this way? I only really use the freewheel when on holiday, and plan a route that would be "chall...