Search found 108 matches

by hayers
5 Oct 2019, 11:10am
Forum: For Sale - bits of bikes, etc.
Topic: Triple Chainset
Replies: 0
Views: 230

Triple Chainset

Shimano 105 10-speed FC5703 triple road chainset, 172.5mm cranks. Used for maybe 2 years, plenty of life left. Removed as I swapped to shorter cranks Some cosmetic wear on driveside crank arm as shown in photos, and one of the pinch bolts has socket past.its prime. £30 - collection in BS35 or will p...
by hayers
1 Oct 2019, 6:38pm
Forum: Does anyone know … ?
Topic: Are some colours out of favour?
Replies: 30
Views: 1130

Re: Are some colours out of favour?

Although clothing comes in fashionable colours, it's a pity that bikes and components are always(?) in no colour at all .................. black. I understand that anodising is cheaper and easier than polishing and lacquering aluminium so it's nice shiny bling, but why black? Why don't they anodise...
by hayers
26 Sep 2019, 8:08am
Forum: Bikes & Bits – Technical section
Topic: M5 pannier rack holes, M6 frame mounts
Replies: 10
Views: 471

Re: M5 pannier rack holes, M6 frame mounts

I think that's non ideal as the M5 bolt will potentially damage the threads in the frame (esp if Aluminium) but if steel doubt that's too likely. The nominal crest diameter through the M6 thread is 5mm, so the M5 bolt will pass but only just. Any risk to threads would be reduced if you can find a bo...
by hayers
18 Sep 2019, 12:48pm
Forum: Bikes & Bits – Technical section
Topic: Why many rear racks no longer triangulated?
Replies: 54
Views: 2142

Re: Why many rear racks no longer triangulated?

FWIW I don't like riding with unladen racks on; they always make a noise and I think they are aerodynamically pretty draggy too. I'm surprised that no-one seems to have made a properly aerodynamic rack, with aero-section legs. cheers It seems they have! https://www.tailfin.cc/product/pannier-racks/...
by hayers
23 Aug 2019, 8:26am
Forum: Does anyone know … ?
Topic: London Bike Fitter
Replies: 5
Views: 451

Re: London Bike Fitter

Think you will be lucky to find such a beast - bike fitting is generally aimed at "sporty" riding on a road bike. Take a look at the notes linked on Colin 531's signature - I followed that advice with great success a few years back after a bike fit got me a setup which felt great for a fas...
by hayers
16 Aug 2019, 3:50pm
Forum: Bikes & Bits – Technical section
Topic: Will a 60 cm frame be much difference to a 58cm frame?
Replies: 9
Views: 548

Re: Will a 60 cm frame be much difference to a 58cm frame?

The size is frame is relatively immaterial: what matters is the seat tube angle - measured from horizontal, you need a lower number so the saddle is moved back. Though as noted above, a layback seatpost may get you there with the current frame.

Edit: just realised pwa said all this...
by hayers
12 Jul 2019, 10:09am
Forum: Bikes & Bits – Technical section
Topic: Creaking handlebars – Nitto Noodle Mod. 177
Replies: 49
Views: 4445

Re: Creaking handlebars – Nitto Noodle Mod. 177

I doubt it would do any harm, but also doubt will affect the creak as assuming there's nothing wobbly loose, there's still a high pressure in the joint, so likely slip-stick behaviour would persist (I am not an expert in tribology so happy to be corrected here!) Personally, I would, depending on ste...
by hayers
9 Jul 2019, 5:39pm
Forum: Bikes & Bits – Technical section
Topic: Bottom gear - will I feel the difference
Replies: 38
Views: 1237

Re: Bottom gear - will I feel the difference

I don't think I can replace just one ring, as per Shimano's specs for the derailleurs, like I said. You might find it works - converted my 105 chainset from 50/39/30 to 50/39/26 and works ok despite shimano's warnings to contrary. That said, the jump's quite big from the 39 to 26. I understand keep...
by hayers
8 Jun 2019, 7:41pm
Forum: Touring & Expedition
Topic: Stupid idea #134......
Replies: 19
Views: 1020

Re: Stupid idea #134......

Probably so long as the ropes stay tight. But why???
by hayers
3 Jun 2019, 11:55am
Forum: Does anyone know … ?
Topic: River Parrett crossings
Replies: 17
Views: 1119

Re: River Parrett crossings

Thought I'd follow up - used the a39 in and a38 out of bridgewater - not lovely, but ok to ride - drivers ok -and got in and out of the town quickly compared to other options (part of a long day so that was important). Stopped in Tart cafe in N Petherton - posh but friendly, and told us space for bi...
by hayers
31 May 2019, 10:22am
Forum: Does anyone know … ?
Topic: Bike trailers (for little ones) advice
Replies: 16
Views: 825

Re: Bike trailers (for little ones) advice

Used a 2 seat chariot (now thule) for a few years. Folded up nicely and towed well, but too wide for some narrow entrances and quite large in buggy use about town. Moved it on on this board a few years back.
by hayers
10 May 2019, 2:54pm
Forum: Bikes & Bits – Technical section
Topic: Crank Length - formula?
Replies: 22
Views: 760

Re: Crank Length - formula?

Yes there are formulae - interesting (and rigorous) discussion here:

https://bikedynamics.co.uk/FitGuidecranks.htm
by hayers
27 Apr 2019, 7:26pm
Forum: Bikes & Bits – Technical section
Topic: Fitting a Deore Chain Set.
Replies: 22
Views: 818

Re: Fitting a Deore Chain Set.

Before looking at subtelties, I'm wondering is the new largest chainring a different size to the old one? If so, you'll need to get the vertical position of the fd on the seat tube correct before adjusting the end stops (and indexing if present). From memory the cage should be around 2mm off the tee...
by hayers
25 Apr 2019, 8:29pm
Forum: Touring & Expedition
Topic: Baggage - order of priority?
Replies: 23
Views: 747

Re: Baggage - order of priority?

1. Saddle bag - always - tools, spares, first aid kit. can just squeeze keys and wallet if nothing else needed; 2. For longer (day) rides add bar bag for sandwiches, sunscreen, un-worn waterproof jacket, and map (in holder on top for navigation and inside if more than 1 needed) 3. Overnight / commut...
by hayers
23 Mar 2019, 8:55am
Forum: Bikes & Bits – Technical section
Topic: Tandem Crossover Chain 3/32 vs 1/8 ?
Replies: 33
Views: 3134

Re: Tandem Crossover Chain 3/16 vs 1/8 ?

you mean 3/32" not 3/16", don't you? cheers ...interesting that the larger chainrings felt stiffer... Presumably because the same torque (eg pedal force x crank length) is transmitted with lower chain tension. This is also why large chainrings wear slowest - more teeth sharing the load AN...