Search found 841 matches

by Norman H
18 Feb 2020, 9:15am
Forum: Touring & Expedition
Topic: Touring with bulky camera gear
Replies: 16
Views: 470

Re: Touring with bulky camera gear

I'm not sure I'd want to risk exposing my expensive dslr to the rigours of an extended cycle tour. My solution is a cheap second hand Fuji SIII Pro dslr body that I'm happy to use on the bike, but I only ever use it on day rides where the main purpose is photography. I fitted out an old Ortlieb bar ...
by Norman H
16 Feb 2020, 5:06pm
Forum: For Sale - bits of bikes, etc.
Topic: Bike Shed Clearout
Replies: 2
Views: 379

Re: Bike Shed Clearout

I'll Take the Stronglight crank set please.
by Norman H
16 Feb 2020, 3:28pm
Forum: Bikes & Bits – Technical section
Topic: Charging devies on tour - Schmidt SON Delux Front Dynamo Hub
Replies: 20
Views: 675

Re: Charging devies on tour - Schmidt SON Delux Front Dynamo Hub

The Schmidt SON Delux wont charge a battery pack direct. The alternating current output of the dynamo needs to be rectified and smoothed, and the voltage output stabilised at the correct voltage for charging. For this you need some sort of dynamo powered charger or a dynamo powered light that incorp...
by Norman H
16 Feb 2020, 9:57am
Forum: Lands End to John O'Groats
Topic: OK - JOGLE September 2020 it is!
Replies: 5
Views: 235

Re: OK - JOGLE September 2020 it is!

I see that your route takes you via the Nigg Cromarty Ferry. Be aware that this is a summer only service operating between May and mid September. Also the chances of a cancellation due to bad weather are more likely in September. The alternative route using the B9176 Struie Road to Evanton and Dingw...
by Norman H
4 Feb 2020, 8:31pm
Forum: For Sale - bits of bikes, etc.
Topic: Sold*Crosstop levers*Sold
Replies: 5
Views: 315

Re: Crosstop levers

Thanks for that. I can still make use of them so I will take them anyway.
by Norman H
4 Feb 2020, 7:38pm
Forum: For Sale - bits of bikes, etc.
Topic: Sold*Crosstop levers*Sold
Replies: 5
Views: 315

Re: Crosstop levers

Are the V brake levers Tektro RL 740's

If so I'll take them. PM me your payment details.
by Norman H
4 Feb 2020, 1:19pm
Forum: Bikes & Bits – Technical section
Topic: Brake levers
Replies: 10
Views: 652

Re: Brake levers

Any flat bar road pull lever should be OK if your BB7's are road pull. These Tiagra levers are on offer from SJS at the moment increasingly flat bar 'road' levers are NSSLR cable pull, which when paired with an older brake design (which I think BB7 road is) results in a slightly underwhelming brake...
by Norman H
2 Feb 2020, 3:06pm
Forum: Bikes & Bits – Technical section
Topic: Shimano GRX chainset
Replies: 6
Views: 402

Re: Shimano GRX chainset

Your problem, as others have pointed out, is the extra 2.5 mm chainline of the GRX chainset. If none of the other suggested fixes work, your cheapest option might be to source a GRX RX400 front changer to match your new chainset. Failing that either source the correct chainring for the original FSA ...
by Norman H
2 Feb 2020, 2:58pm
Forum: Bikes & Bits – Technical section
Topic: Brake levers
Replies: 10
Views: 652

Re: Brake levers

Any flat bar road pull lever should be OK if your BB7's are road pull. These Tiagra levers are on offer from SJS at the moment

Avid do levers that are adjustable for mechanical advantage and in theory should be good for both road and mtb cable pull.. I believe they're designated Speed Dial
by Norman H
28 Jan 2020, 11:12am
Forum: Bikes & Bits – Technical section
Topic: Carbon Wheels: worthwhile upgrade, yay or nay?
Replies: 63
Views: 1579

Re: Carbon Wheels: worthwhile upgrade, yay or nay?

As pwa has pointed out “in proportion” implies a linear relationship. If this were true then the aerodynamic gains to be had at slower speeds would indeed be more worthwhile pursuing. But as mentioned before the relationship between speed and drag is non linear. RickH was on the right track. He also...
by Norman H
28 Jan 2020, 10:16am
Forum: Bikes & Bits – Technical section
Topic: Carbon Wheels: worthwhile upgrade, yay or nay?
Replies: 63
Views: 1579

Re: Carbon Wheels: worthwhile upgrade, yay or nay?

For the average non-competitive rider, most of the available gains from carbon wheels are 'not worth worrying about' in that sense. That's not the point. The point is, the gain is available in proportion to the speed, which is what I already said. But if you read the article I linked to, it explain...
by Norman H
28 Jan 2020, 8:55am
Forum: Bikes & Bits – Technical section
Topic: Carbon Wheels: worthwhile upgrade, yay or nay?
Replies: 63
Views: 1579

Re: Carbon Wheels: worthwhile upgrade, yay or nay?

thatsnotmyname wrote:
The point I'm making is that the gain still exists, regardless of the speed.


Yes, but at low speeds it's so small that it's not worth worrying about.
by Norman H
27 Jan 2020, 4:18pm
Forum: Bikes & Bits – Technical section
Topic: Carbon Wheels: worthwhile upgrade, yay or nay?
Replies: 63
Views: 1579

Re: Carbon Wheels: worthwhile upgrade, yay or nay?

Speed isn't irrelevant. At low speeds aerodynamic losses are small, especially in comparison to losses from rolling resistance. At higher speeds aerodynamic losses can be very much larger because drag doesn't vary in a linear fashion with speed.
by Norman H
27 Jan 2020, 10:20am
Forum: Bikes & Bits – Technical section
Topic: What is a Gravel Bike?
Replies: 280
Views: 7663

Re: What is a Gravel Bike?

thatsnotmyname wrote: No such thing as 'worthwhile' aerodynamics - unless you can provide a meaningful definition? Either aerodynamic advantages are available, or they are not. And if they are, then they are available throughout the speed range. Ironically, a slower rider could have more to gain fr...