Not a big issue calling a tire 23C or 25C and so on but the number ( 19 , 20 , 22 ,23 , 25 ,28 ,32 etc.) represents how wide the tire is in millimeters. The French measure their rims with a number and letter ie, 700A , 700B , 700C , 700D , 650A , 650B ,650C and several other sized. 700A being the most narrow rim and D being the widest. It makes more sense to me to describe the tire width in millimeters since that is how they are measured. Through the years some of these rims have disappeared or discontinued. I do not know of any current manufactures of 700A or 700D. 700C is the modern day rim almost all of us ride (even if the Vittoria tire may say 28 in.). 700B is still used in Europe for some casual rider bike type. 650C for Tri bikes and 650B for some vintage touring bikes , tandems and early mtn.bikes wheels.
Other opinions may vary. :-) Gary Smith TLC for Bikes www.tlc4bikes.com -----Original Message----- From: Jeff Snavely <[email protected]> To: [email protected] Sent: Fri, Feb 5, 2010 8:53 pm Subject: Re: [Gyros: 14848] Re: 2/6 Weekly Ride Schedule! I guess my point was that you don't have to have a "mountain bike" to ride in Umstead. Unless I am heading over towards crabtree to some actual trails, I grab a touring or cross bike for umstead loops. I am not saying that a slick 25mm road tire would be ideal, but it would be possible if you wanted a change of scenery sometime. Ideal would probably be a bike with 30-34mm tires. Gary, I have always thought 28c equaled 28mm in tire-speak. It wouldn't be the first time that I've picked up a wrong habit though ;) On Fri, Feb 5, 2010 at 7:06 PM, <[email protected]> wrote: Your tires are probably 700x23mm. That means your tire is 23mm wide. Jeff says that a 25mm or 28mm wide tire will work. A 25/28c (centimeter) tire wold be pretty wide - about 10 - 11 inches. Gary Smith TLC for Bikes www.tlc4bikes.com -----Original Message----- From: mary dorsey <[email protected]> To: [email protected] Sent: Fri, Feb 5, 2010 6:55 pm Subject: RE: [Gyros: 14845] Re: 2/6 Weekly Ride Schedule! Jeff I’m not quite sure what that means. I just have my trek 5200 OCLV with the regular road tires which I doubt would work in umstead but if I’m wrong let me know. Thanks Mary From: [email protected] [mailto:[email protected]] On Behalf Of Jeff Snavely Sent: Friday, February 05, 2010 2:17 PM To: [email protected] Subject: Re: [Gyros: 14841] Re: 2/6 Weekly Ride Schedule! You really don't need more than about a 25/28c tire to ride umstead if you stay off cedar ridge. On Fri, Feb 5, 2010 at 2:09 PM, DonnaWebster <[email protected]> wrote: if you have the time, a mountain bike, and some wet weather gear Umstead is the perfect place to ride . . we froze our hands and feet off but other than that we had a great ride. On Feb 5, 1:02 pm, [email protected] wrote: > So what's a girl to do if you don't get home til dark each day and don't own > a mtn bike to ride on snow? > > > > > > > > Until someone gets me an MTB and time off from work, I guess I'll be on the > trainer ! :( > > > > > > > > mary > > -----Original Message----- > From: DENNIS GUVETIS > Sent: Feb 5, 2010 12:42 PM > To: [email protected] > Subject: Re: [Gyros: 14838] Re: 2/6 Weekly Ride Schedule!Hey Craig, you > nailed it! > > > > Dennis > > From:Craig <[email protected]>To:[email protected]:Fri, February 5, > 2010 11:10:03 AMSubject:Re: [Gyros: 14836] Re: 2/6 Weekly Ride Schedule! > I refuse to ride a trainer under any conditions, as it destroys brain cells. > Think of this as a nice mid-winter break.On Fri, Feb 5, 2010 at 9:12 AM, > DonnaWebster<[email protected]>wrote:WHOSE ON A TRAINER???...NOT US... > The Wacky Webster's have been out > riding. We took our mtn bikes to Umstead on Tuesday and we're on our > way right now to Umstead....CYCLISTS RISE UP AND RIDE!!! Yesterday > Mike Wallace and myself got 30 miles in and saw Randy Soyars while we > were out. > > > On Feb 5, 9:06 am, Logan <[email protected]> wrote: > > its only a 30% chance... thats a 70% chance for riding. be a bit > > more optimistic guys. > > > > On Feb 5, 7:59 am, "mary dorsey" <[email protected]> wrote: > > > > > > > > > I don't know but I'm really sick of riding my trainer, as I'm sure > > > everyone > > > else is. > > > > > mary > > > > > _____ > > > > > From:[email protected][mailto:[email protected]] On Behalf Of > > > Tony > > > Sent: Friday, February 05, 2010 7:09 AM > > > To:[email protected] > > > Subject: [Gyros: 14831] 2/6 Weekly Ride Schedule! > > > > > G's, > > > > > Another Saturday and another cancelled ride. When will it end!!!!!! > > > > > SATURDAY RIDE (2/6) > > > > > RIDE CANCELLED! > > > > > SUNDAY RIDE (2/7): (COLD WEATHER IS PREDICTED FOR SUNDAY SO LOOK FOR A > > > POSSIBLE RIDE POSTPONEMENT OR CANCELLATION NOTICE) > > > > > 1. Kim's Recovery Ride leaves from Blue Jay Point @ 9am. (38 miles @ > > > 17-18mph pace) > > > > > 2. Mike's Gyro Touring Ride > >> > MEETING PLACE: Blue Jay Point > >> > (Directions:http://www.raleighgyros.com/locations.htm) > > > TIME: Sunday 2/7 @ 8:30 am > > > DISTANCE: 30 miles > > > > > ROUTE: TBD > > > PACE: 14-16mph - No drop but you MUST be able to maintain the minimum > > > pace. > > > > > MONDAY RIDE: > > > > > Hal's Ride is cancelled for the season. > > > > > TUESDAY RIDE: > > > > > Rick's Ride cancelled (Temporarily) > > > > > WEDNESDAY: > > > > > Andy's Ride is cancelled for the season. > > > > > THURSDAY: > > > > > Dave's Ride is cancelled for the season. > > > > > All ride locations can be found on our website > > > @http://www.raleighgyros.com/locations.htm > > > > > THE PLAN: > > > One or more groups will leave with the intent of riding as a group at a > > > target pace. We will try to cover the same routes, albeit a shorter > > > distance > > > for the slower group, so if you're struggling or want to ride at an easier > > > pace, you can move back to a slower group. If you're already in the > > > slowest > > > group, the ride leader will check to make sure you can make your way back > > > alone or with another volunteer. You'll know within the first 7 miles > > > whether or not you're strong enough to maintain the pace. The general rule > > > is that you should be able to maintain at least a 19+mph pace for the A > > > Group, 18mph pace for 40-50 miles with the B+ Group or a 16mph pace for > > > 30-40 miles with the B Group, when considering which group to ride with. > > > If > > > you can not maintain these paces, then it is suggested that you consider > > > the > > > C/B- Sunday ride. (Please refer to the link above). > > > > > Each group should make a concerted effort to keep the group together but > > > there will always be those who want to pick up the pace on the return. It > > > is > > > more appropriate to do this the last 5-7 miles of a ride. The short hammer > > > sessions, that are always inevitable during our rides, will not be > > > affected. > > > > > To find out more about pacelines, please read the link below. > >> >http://www.raleighgyros.com/training.htm > > > > > Thanks, Tony > > > > > -- > > > You received this message because you subscribed to the Gyro email group. > > > To post to this group, send an email [email protected] > > > > To unsubscribe, send an email to [email protected] Hide > > > quoted text - > > > > - Show quoted text - > -- > > You received this message because you subscribed to the Gyro email group. > To post to this group, send an email [email protected] > To unsubscribe, send an email [email protected] > > > > -- > You received this message because you subscribed to the Gyro email group. > To post to this group, send an email to [email protected] > To unsubscribe, send an email to [email protected] > > > > > > > > -- > You received this message because you subscribed to the Gyro email group. > To post to this group, send an email to [email protected] > To unsubscribe, send an email to [email protected] -- You received this message because you subscribed to the Gyro email group. To post to this group, send an email to [email protected] To unsubscribe, send an email to [email protected] -- You received this message because you subscribed to the Gyro email group. To post to this group, send an email to [email protected] To unsubscribe, send an email to [email protected] -- You received this message because you subscribed to the Gyro email group. To post to this group, send an email to [email protected] To unsubscribe, send an email to [email protected] -- You received this message because you subscribed to the Gyro email group. To post to this group, send an email to [email protected] To unsubscribe, send an email to [email protected] -- You received this message because you subscribed to the Gyro email group. To post to this group, send an email to [email protected] To unsubscribe, send an email to [email protected] -- You received this message because you subscribed to the Gyro email group. To post to this group, send an email to [email protected] To unsubscribe, send an email to [email protected]
