Cycling UK Forum

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 ...

I'll Take the Stronglight crank set please.

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...

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...

PM sent for bar end shifters

Thanks for that. I can still make use of them so I will take them anyway.

Are the V brake levers Tektro RL 740's

If so I'll take them. PM me your payment details.

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...

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 ...

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

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...

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...

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.

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.

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...