Recent Posts

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1
Transmission / Re: Replace chain
« Last post by mickeg on July 28, 2026, 07:30:39 PM »
I never thought about all that when making my choice,  :)

I am an engineer (retired), so I of course I tried to use a scientific approach.  I tried to pedal up a steep hill near my home several times to see how slow I could go and still feel comfortable that I am stable and not oversteering and overcorrecting.  That was how I came to the 3.5 mph criteria and the cadence of 72.  If I tried a cadence closer to 60, I noticed the slow down and speed up pattern as I pedaled, thus I set my target for hill climbing at a cadence of 72 that felt smoother.

I have pedaled up hills on my Nomad Mk II in first gear with a cadence of 60, thus about 2.9 mph, but those were on good days without wind, minimal traffic on the road so I felt more comfortable being further from the edge, etc.
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Non-Thorn Related / Re: Has anyone had a bike fit?
« Last post by mickeg on July 28, 2026, 07:18:16 PM »
I never had one.  And am quite content with the results.

I occasionally notice people in front of me that I suspect have their saddles too low, they seem to swing their knees outward to the side as they pedal.

I used to be very uncomfortable when using the drops, maybe used the drops about 5 percent of the time.  Then I lost about 15 percent of my body weight, and a lot of that weight came off the middle section.  Now I am much more comfortable using the drops and use the drops more often without discomfort.  My point here is that if you plan to lose weight, you might want to do that before instead of after the bike fit.
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Non-Thorn Related / Re: Has anyone had a bike fit?
« Last post by energyman on July 28, 2026, 06:00:18 PM »
I had a bike fit years ago when I bought my RST.  Best thing I ever did as it fits me like a  glove.  It's now converted to an E and still going strong.
Kevin Sayles looked me over a few years later and built me a superb Woodrup Chimera.
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Transmission / Re: Replace chain
« Last post by jul on July 28, 2026, 03:17:26 PM »
I never thought about all that when making my choice,  :)

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Transmission / Re: Replace chain
« Last post by mickeg on July 28, 2026, 02:34:04 PM »
Thanks Mickeg, interesting ..

Effectively, for me 36x16, the most important gear is the  first, i can climb almost  any hill..

But, my next Surly chainring  have 35 teeths, i got a good price for it,  I don’ t know if i have to keep my sprocket in 16 teeths or maybe 17 ! but i'm afraid to ́lost my first short gear..

For information, 36x16  transmission,  above 33km/h you can no longer pedal, sometimes it’s frustrating

My cadence has varied over time.  For the past few years, it usually is in the range of 66 when I am doing a multi-hour ride.  If I am working to get up a hill in a low gear, I try to raise it up to 72.  But if I have been in the saddle for most of the day already, it might dip down to 60.

I mentioned I use 36T/16T (ratio of 2.25) for touring.  But for riding around near home with an unladen bike, I put a 44T chainring one the bike, add four more chain links for a ratio of 2.75.  For riding near home, I never need a gear higher than 14 with that higher range of gears. 

But for touring, I value that low gear, so I can live with the loss of the higher gear that I would otherwise use on shallow downhills.

When I built up my Nomad, I calculated that if I wanted to use the stock 16T sprocket, pedal at a cadence of 72, and have a speed of 3.5 miles per hour, that I wanted a 36T sprocket.  I find that I can't get below 3 mph without oversteering to try to maintain stability, both directional and vertical.  And a cadence of 72 feels smoother than anything slower.  My point is I did some calculations to figure out that I wanted the 36T, I did not pick it at random.

And the 44T, that range of gears pretty much mirrors my range of gears that I think are ideal for riding near home on my other bikes.
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Non-Thorn Related / Re: Has anyone had a bike fit?
« Last post by in4 on July 28, 2026, 08:18:40 AM »
I too had a fit on Hewitt’s fitting steed; looked like a medieval torture device but was a tried, tested and accurate device  for me. I also had a fit at SJS in Bridgewater which was a different but just as effective a process. I’ve only changed my bike stem once in over 8 years of riding my Nomad.
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Transmission / Re: Replace chain
« Last post by martinf on July 27, 2026, 10:12:43 PM »
For information, 36x16  transmission,  aboie 33km/h you can no longer pedal, sometimes it’s frustrating

Depends on your pedaling cadence.

I generally pedal relatively fast at about 90 rpm (tours par minute). With a 36x16 combination that translates into 36 km/h, which is way above a sustainable speed for me on the level, unless I have an exceptionally strong tail wind.

If necessary I can increase pedal cadence for very short periods. With a 36x16 combination at 120 rpm in the highest gear that would be 48 km/h. In practice, that kind of speed is not really useful for me, except perhaps when I negotiate medium size roundabouts, where I feel safer if I am doing roughly the same speed as most of the motor vehicules. 

My current highest gearing on any of my bikes is 42x19 on my Rohloff equipped Raven Sport Tour. I use that bike mainly for day rides with little luggage. Top gear with 42x19 is slightly lower than with a 36x16, the maximum speed I managed recently when pedaling (downhill) was 53 km/h at 137 rpm, just to see if I could still do that at age 69. But normally I would just stop pedaling and coast down the hill.   
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Transmission / Re: Replace chain
« Last post by jul on July 27, 2026, 08:55:06 PM »
Thanks Mickeg, interesting ..

Effectively, for me 36x16, the most important gear is the  first, i can climb almost  any hill..

But, my next Surly chainring  have 35 teeths, i got a good price for it,  I don’ t know if i have to keep my sprocket in 16 teeths or maybe 17 ! but i'm afraid to ́lost my first short gear..

For information, 36x16  transmission,  above 33km/h you can no longer pedal, sometimes it’s frustrating
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General Technical / Re: Brooks saddle
« Last post by mickeg on July 27, 2026, 08:10:11 PM »
maybe is it possible to find a similar saddle as the B17 but without leather ?
I went from the leather B17 to the rubber C17 and prefer the C17, it isn't identical, a bit like a half broken in B17, not everyone likes that, I bought a second C17 from someone returning to leather.

I have two C17 saddles that I really do not like, they are currently unused.  I am sticking with leather.
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General Technical / Re: Brooks saddle
« Last post by PH on July 27, 2026, 01:34:02 PM »
maybe is it possible to find a similar saddle as the B17 but without leather ?
I went from the leather B17 to the rubber C17 and prefer the C17, it isn't identical, a bit like a half broken in B17, not everyone likes that, I bought a second C17 from someone returning to leather.
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