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Messages - DaveB

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General Discussion / Re: what cycling computer to get?
« on: October 01, 2010, 11:00:31 am »
[We had temperature on whatever computer I took off the tandem in frustration this summer.  It was entertaining, and at some point I had planned on calibrating it.  I'm sure there was a relationship between the readout and the temperature.  I just don't yet know what it was...
I don't see how a cyclometer can give an accurate temperature.  If it sits in the sun, the case will heat up and give an erroneously high reading. 

Gear Talk / Re: Music From Your Jersey
« on: September 29, 2010, 10:13:25 am »
I have a long bike commute (36 miles each way) and often wonder about safe ways to listen to the news, catch up on podcasts, or do a chapter of a Pimsleur course.  Seems like a reasonable solution.
As long as the volume doesn't block out traffic noise I expect listening to music is safe enough.  However, listening to news or, worse podcasts and lessons, where you really need to concentrate on the audio, strikes me as a dangerous distraction in the same league as talking on a cell phone while riding.  And, yes, I've seen riders do that.   

General Discussion / Re: Best Chain Ring?
« on: September 29, 2010, 10:08:06 am »
  I would still steer them to a compact mountain crank, a 22/32/42.  My reason is that when you swap out the small cog, like you suggested, that the shifting can be a little rough.
I've substituted 26T granny rings for the OEM 30T ring on numerous road cranks over the years.  The shift from the 42 to the granny is still good.  The only sluggish shift has been from the granny back to the 42 and I'm never really in a rush for that one.  A 48/38/24 crank should shift at least as well as my 52 or 53/42/26 cranks.

The OP's use of an 11T small cog does give him a 103" high gear with a 42T "big" chainring so that is a useful combination as you noted.   My only objection to a cassette with that wide a range (11x32 or 11x34) is that it leaves huge gearing gaps between the middle cogs where you spend most of your time.

General Discussion / Re: Parking Your Car while Touring
« on: September 29, 2010, 09:56:55 am »
Several years ago we did a loop tour in the Finger Lakes region of New york and had motel reservations for our last night.  We were able to leave our car in the motel parking lot (with the owner's permission) while we were on the tour.

General Discussion / Re: biking beats walking
« on: September 29, 2010, 09:49:42 am »
Supplementing vitamin D would help though.
There is no downside to suplimenting Vitamin D.  It's cheap, it's not at all toxic unless you take grossly excessive amounts and it provides a necessary vitamin for the many days when we don't get outside at all or are bundled up in cold weather clothing.

General Discussion / Re: biking beats walking
« on: September 28, 2010, 12:13:54 pm »
Calcium absorption will also be hampered by a deficiency of vitamin D.  I think however that most cyclists probably get enough vitamin D from being in the sun if they're not depleting it with prescription drugs or smoking.
A factor in Vitamin D deficiencies, even for those out in the sun a lot, is our current use of high-SPF sun blocks since we've been warned about the effects of UV radiation causing skin cancer.  Most people I know slather SPF 30 or above on every square inch of exposed skin every sunny day.   

The nice thing about Vitamin D supplements is that they are cheap.  A 400 count bottle of 2000 IU Vitamin D capsules is less than $10.

General Discussion / Re: Best Chain Ring?
« on: September 28, 2010, 12:07:01 pm »
I don't know why you think that a 48/38/38 is more versatile.  Yes, I disagree but I am curious about your reasons.
You didn't pay attention to the rest of the sentence which said: with the 24T granny substitution for the 28.

The 48 to 24 range is the widest the OP could have and provides the potential for a suitably low low gear with a suitably high high gear. 

When I posted my comment, I didn't know he has a 11T small  cog which will probably give an unnecessarily high top gear (118 gear-inches) with the 48T big ring.

Gear Talk / Re: Music From Your Jersey
« on: September 26, 2010, 10:08:58 am »
I must be dreadfully old-fashion but I think the best "...safer alternative to earphones." is to avoid the audio entirely and enjoy your surroundings.  I'm fond of the saying: "If you want all the comforts of home, stay home."   ;D

I wonder if next year's jersey has a built-in TV/computer monitor and keyboard.

General Discussion / Re: Best Chain Ring?
« on: September 26, 2010, 09:59:43 am »
The most versatile gearing would be the 48/38/28 with the 24T granny substitution for the 28. 

What you haven't told us is what cassette gearing you are going to use as that has a major effect on overall gear range too.  An 11x34 or 12x23 are far different.

General Discussion / Re: what cycling computer to get?
« on: September 23, 2010, 09:36:26 pm »
One word; Cat-Eye.  Any model.  And, why is wireless a "must"?  Wireless has it's share of interference problems and wired computers never do. 

Gear Talk / Re: Which touring bike?
« on: September 18, 2010, 08:36:01 am »
just got a note from they're coming out with a new and interesting concept for their 2011 line...''won't be steel'' is what i was also told (and hopefully no aluminum...then TI????)
If it really is Ti, plan on doubling your original budget.

Gear Talk / Re: Which touring bike?
« on: September 03, 2010, 10:58:09 am »
Someone who is not well versed in bikes (" all the bike specs etc really mean nothing to me." and "I don't really have a clue what I'm looking for!") really shouldn't even consider buying a bike over the internet.  

Find a bike shop that has knowledge of touring bikes and let them advise you.  Be specific as to what you want the bike for and what your expected budget is and let them help you select something suitable.  You are much more likely to get the bike you need and will have the shop's help getting it set up to fit you and have their follow-up service if you need it.

General Discussion / Re: Gators in FL
« on: August 27, 2010, 07:23:11 pm »
One place to avoid in Florida is Gainesville.  There are at least 40,000 Gators there during the school year and they can be VERY annoying, particularly on foootball weekends.  :D

Gear Talk / Re: 28'' tubes?
« on: August 19, 2010, 08:24:36 pm »
The shop in Orlando didn't really have 28" tubes, he just recognized what you really needed.  Quoting from Sheldon Brown's web site about 700c (ISO 622) wheels; "In northern Europe, this size sometimes called "28 inch.""

Just to make things even more confusing the current MTB wheels advertised as 29" are also a 700c rims and tires.

Gear Talk / Re: Lower gearing: change cassette, chainrings or both?
« on: August 19, 2010, 08:16:26 pm »
Check out Harris Cyclery's web site under "9-speed cassettes".  They offer 12x32 cassettes in XT and SLX level called "The Big Dozen" and a really wide 12x36 9-speed from the SLX group.  Their prices are reasonable.   They also offer a 13x34 "Cyclotourist 13" cassette but this one is a bit pricey.

In the past I believe the 12x32 and 12x34 9-speed cassettes were only available in XTR form with the largest few cogs made of Ti and the cost was eyepopping.

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