High School Mountain Bike Team

EASTLAKE HIGH SCHOOL CYCLING TEAM

CHULA VISTA, CA

March 2, 2013

If you are out near the trails of the Otay Reservoir or the open hillsides of Mt San Miguel on a weekday afternoon, chances are you may have seen a group of dedicated high school student athletes on mountain bikes spinning up the hills on the single-track. We are the Eastlake High School Mountain Bike Team, one of two high school mountain bike teams in San Diego County, and a part of the SoCal League of high school mountain bike racers. With 32 teams in the SoCal League, and over 300 riders, we are part of a growing movement that seeks to provide student athletes an arena in which to set and accomplish competitive goals, and to achieve their personal best. 

 

2013 marks the fourth year for the Eastlake High School Mountain Bike Team, comprised of boys and girls from freshman to senior. Our pre-season begins in October, with training consisting of skills clinics for new members, and purposeful trail rides targeted to improving the endurance and bike-handling skills of returning members.

Students come from all different backgrounds and levels of experience. Some have been riding since they can remember, while others have only just got their first bike, and are learning as they go, encouraged by their teammates.

Being a part of a mountain bike team is unique, in that while you are a part of a team and something larger than yourself, the competition is largely an individual effort. Whereas a football player who is new to the sport and perhaps at a physical disadvantage would spend time on the bench on game day, every mountain biker who comes to practice has a chance of competing on race day. If you as a cyclist know that you have put in the practice house to go the distance, and you have completed the necessary skills training to successfully navigate the obstacles on the trail, then you know your race is largely about eating properly and hydrating well in the days before the race, mentally preparing yourself for the race, mentally preparing yourself for any unexpected setbacks such as a flat tire or a crash, and putting it all together on race day so that you start and finish your race well.

If you are interested in learning more about the Eastlake Cycle Team and how you can be a part of the growing movement of enthusiast mountain bikers who want to see the sport grow (e.g., be a ride leader!) and see more young people on mountain bikes, we encourage you to contact us via this blog, through Eastlake High School, the SoCal League, or our Facebook page. And if you see a group of high school students riding together around Eastlake, wave hello and feel free to cheer us on!

Like us on Facebook: www.facebook.com/EastlakeHSMTB

Flat-changing Clinic part 2

This is Part 2 of the 3-part series on Bicycle Maintenance: Tires and Flat-changing.

In Part 1, I talked about what to expect in my flat-changing clinics, held monthly and hosted by B+L Bike and Sport. Here are some of the questions that come up in my flat-changing clinics. Please feel free to add your own questions in the comments. :)


WHEN IN THE COURSE OF CHANGING A FLAT...

Do I need to take the whole tire off?
No. You only need to take one side of the tire off so that you can remove and replace the tube.

What are the advantages to removing the whole tire?
Facilitates finding the thing that made you flat.
Removing the tire entirely will make it easier to find the glass, thorn, piece of wire, etc. Sometimes the object will remain in the rubber of the tire, slightly poking through the inside, just waiting to flat your new tube. With the tire removed, you can practically turn it inside-out.

Is there any disadvantage to removing the whole tire?
Remounting it in the wrong direction. 

Tires are often designed to roll best in one direction. Unless you know the direction of rotation, which is sometimes stamped into the sidewall of the tire, you need to either
a) pay close attention to decals and logos when you removed the tire, i.e., logos match up to the cassette /skewer nut side or the skewer lever side, or
b) know how to read the directional tread of a tire.

"<= ROTATION" is stamped into the sidewall of many tires.

TUBES 

What do all those numbers on the tube box mean?
Example: 700 x 18-28, 48mm  (road tube)

• 700 = roughly 700mm rim diameter
• 18-28   Number of mm wide the tube will comfortably inflate. If the tire is narrower than 18mm, there will be too much flabby tube inside it. If the tire is wider than 28mm, the tube will be stretched too thin.
• 48mm  length of the presta valve on a road tube. Deeper rims require longer valve stems. A short valve stem inside the rim may not allow you to attach the pump to inflate it.

Example: 26 x 1.9-2.125  (mountain bike tube)

• 26 = 26" diameter rim
• 1.9 - 2.125  Number of inches wide that the tube will comfortable inflate.

How do I know I have the right size tube?

Easiest way: take your tire to the bike shop and tell them you need a spare tube. When you remove the tube from the box and put it in a plastic bag, tear off the end of the box with all the numbers and put it inside the bag with the spare tube.

TIRES

Are bike measurements in inches or metric?
Road bikes are most commonly measured in metric, mountain bikes in inches.

What is the "bead" of the tire?

The bead is the edge that hooks into the rim and holds the tire onto the rim. Tire beads are either wire or kevlar.

What is the difference between wire or kevlar bead tires?

Wire bead  

• often less expensive 
• harder to mount onto rims 
• better for 230+ lbs riders (because the bead stays in place and won't blow off the rim) 
• adds 50-75g in rotational weight, which is fine for flat terrain, but more work in hilly terrain.

Kevlar bead 

• often more expensive than wire bead 
• easy to mount into rims
• fold-able (you can carry one in your back pocket if you need to)
• reduced rotational weight

How much air do my tires need?

Every tire is stamped with a recommended inflation. Road bike tires are high pressure, low volume, and are generally inflated between 95-125 psi. 

Road bike tire recommended inflation: 115 PSI / 125 PSI

Mountain bike tires are low pressure, high volume, and are generally inflated between 30-50 psi.

Mountain bike tire recommended inflation: 36-65 PSI 

Why are some road tires perfectly slick and others have ridges (tread)?
Perfectly slick road tires are most often used by racers, having the least friction and drag. Tires with more tread provide better grip and are better for directing water or mud away from the center of the tire. Ask at your local bike shop which tire is best for your riding style and goals.

MISC

Is the rim and the wheel the same thing?
No. The rim is only the hoop part with the holes in it. The wheel is made up of the rim, spokes, hub, etc.

What is presta and schrader?

Tube valve stems are either presta or schrader (looks like the car tire).

presta valve in a mountain bike wheel

Unscrew the top (little gold piece) to inflate. Be sure to tighten it back down.

How often do I need to pump up my tires?

Check tires before every ride. 

Properly inflated road tires should feel completely solid. If you can make any depression with your fingers in the sidewall at all, you need air. Use a good floor pump and knew for certain how much pressure is in your tires. 

If road tires are to be harder than an apple, mountain tires should be a bit softer than an orange. You should be able to depress the sidewall slightly. 

If you have additional questions or are curious about tubes or tires, please see Sheldon Brown's website. Although Sheldon is no longer with us, his site is maintained by volunteers and remains a great resource for cyclists.

Next week I'll have Part 3: What's in your saddlebag? Items you should have with you when you ride.

Flat Changing Clinic - Part 1

This is Part 1 of the 3-part series on Bicycle Maintenance: Tires and Flat-changing.

When I first started cycling, my mechanic in New Jersey encouraged me to attend a flat-changing and bike maintenance clinic put on by the parks department. I remember following all the steps the instructor told me, but still being so confused, and feeling like I only got through the flat-changing part because someone more knowledgeable than me was there to help.

Since that clinic in Feb 2003, I've tried to learn as much as I could about bikes and bike maintenance. Being something of a compulsive teacher, I naturally have to pass on what I've learned, so I started teaching flat-changing clinics with women as the target audience.

Now I teach a flat-changing clinic at B+L Bike and Sports once a month. This past Sunday afternoon, I taught at the Solana Beach store where we had nine women attend. It was a great afternoon!

Jenny and Robbin watch as Monica pulls the tube out of the tire in a simulated flat.

Team LUNA Chix San Diego will be teaming up with B+L Bike and Sports to bring you flat-changing clinics once a month throughout the season at one of the two B+L locations. Please check our website or Facebook for dates, location, and details.

WHAT TO EXPECT AT THE FLAT-CHANGING CLINIC:

HANDS-ON LEARNING. It's important that everyone actually work on a bike and not just spectate. Doing it yourself boosts your confidence, and reinforces the notion that you can, in fact, do this yourself. 

MASTERY OF REAR WHEEL REMOVAL-REPLACEMENT. We always work on rear wheels, with at least ten minutes spent removing and replacing the rear wheel, until everyone is comfortable doing so. As with most things, there are tricks to making removing/replacing a rear wheel easy. And just to get that thought out of your head - no, you won't hurt the bike.

 Monica continues working on her tire as Bev (background) looks up from her work.

CAMARADERIE. Depending on space, there will be 4-6 bikes to work on. Attendees will work singly, in pairs, or even in groups of three to get the job done. No matter how many of us there are, we work together to make sure everyone is comfortable and no one is getting stressed out. :)
Taking turns, everyone gets a chance to practice removing and replacing the rear wheel, removing the tire, getting the tire back onto the rim, and inflating the tube with CO2.

Heather and Megan (left) and Patti and Jennifer (right) work in pairs  to install the tube.

CO2 PRACTICE. Everyone gets a chance to practice using CO2, thanks to support by Genuine Innovations. I remember being somewhat skeptical myself (read: afraid of it) at first. But once I realized how easy it is to use, and how I could eliminate ten minutes or more of exhausting frame pump arm work on the side of the road by using a CO2 cartridge that costs as little as a vanilla latte, I was sold.

Jan and Bev line up the CO2 to inflate the tire. Special shout-out to Genuine Innovations for providing MicroFlate Nano heads and CO2 cartridges for the women to practice with.

In part 2 of the blog Bicycle Maintenance: Tires and Flat-changing, I'll answer 
frequently asked questions, including:

• What do all those numbers on the tube box mean? 
• How do I know I have the right size tube?
• Do I need to take the whole tire off?
• Why are some tires perfectly slick and others have ridges (tread)?
• Is the rim and the wheel the same thing?

Please feel free to post your questions below! If I can't answer it, I'll find the answer from someone more knowledgeable than me.

Patti checks to make sure the MicroFlate head in lined up square to the rim for best air flow.

Thank yous are in order to all the attendees of my most recent clinic in Solana Beach: Monica and her friends Robbin and Jenny, Bev, Jan, Heather, Megan, Patti, and Jennifer. Thanks to the guys at B+L Bike and Sports Solana Beach: Tom, Scott, Gisan, and especially Kevin who stayed late for us. Thanks to Mark of B+L Bike and Sports who invited me into his shop and is hosting these events. And big thanks to Genuine Innovations, who supplies the MicroFlate Nano heads and the CO2 cartridges we use in class. These San Diego Flat-changing clinics exist because of your efforts.


Next clinic:
Sunday, 5/20/12, 3:45 PM
B+L Bike and Sports in San Diego (Rosecrans).
RSVP on Meetup.com

 

Riding with Children: Lake Miramar

One of the questions I am often asked is: Where can I ride with my kids?

We in San Diego are very fortunate to have a number of dedicated bike paths throughout the county. Over the next few months, Jane and I will be exploring some of San Diego's many great places to ride.

Lake Miramar
Location: Near I-15 and Mira Mesa Blvd.
Distance: 5 miles around the lake
Elevation gain: Almost flat
Riding time: 30 minutes
Road conditions: Paved road/path
Traffic conditions: Usually light
Difficulty: Easy
Equipment: Any bicycle
Kid-friendly: Yes
Notes: Very little shade along the route. Recommended riding in the morning or early evening, or on overcast days.

Lake Miramar, located near Mira Mesa, is a great place to take a relaxing ride alone, with friends, or with children. The five-mile paved path is wide enough in most places for two cyclists to ride abreast against oncoming pedestrian and cycling traffic.


The road is virtually flat all the way around the reservoir. Two parking areas are available, a smaller area located just as you enter the park, and a parking area for RV's and boat trailers about 400 yards down the road. Restrooms and water fountains are located along the interior parking area. Additionally, you will find a port-a-john about one mile from the parking area, on the north-west side of the reservoir. Lake Miramar is a great place for a picnic, with a picnic area on the north side of the reservoir.

Lake Miramar is an ideal place for adults and children to practice skills and techniques essential to riding safely on the road, since you are in a controlled environment with no vehicular traffic.

Drills you can do while riding (Wow! What a great idea!)
Riding in a straight line without deviation. If the path is clear in both directions, try riding the white or yellow line.
Taking a hand off the handlebars to reach for a waterbottle. Replace the bottle without looking down.
Practice riding in close proximity to your riding partner by gently putting a hand on his shoulder as you ride.

These drills will help you to become a better, more confident rider.

Jane and Laura at Lake Miramar, Jan 2009

Resources: MyBikeSite.com (Lake Miramar) - info on trail conditions, routes, and a place to share your stories

Now pack up the kids and go have fun!

Introduction

I swoop into the bike shop where I work part time and make a bee-line for my mechanic and good buddy Steve.

"Steve! Have I told you about my new business?" I ask excitedly.

"Um, no?" he timorously responds, hardly looking up from the tire he is changing.

"OK! So, it's called Sunny Rides, LLC, and the division I'm focusing on right now is Sunny Safe Commute. It's a bicycle commuter consultant and coaching business."

"Mmm-hmm," he says as he pops the tire onto the rim.

"So! If you don't have a bike, but want one for commuting," I pause just long enough to take a quick breath, "I'll help you choose your bike and make sure it does all the things you want to do with it besides commute. I'll teach you how to ride and make sure you're good with the shifting and everything. If you already have a bike, I can help you map out your route and teach you to change a flat tire. Oh, and I can also do all the homework that people hate to do, like locate bike lockers, or safe places to lock your bike, or find a gym that offers just a shower pass."

I pause, awaiting praise at my brilliance or, more realistically, some kind of grunt in the affirmative that tells me he's still listening.

"Uh-HUH," he says. I take this as my cue to continue.

"Yes! And I'll have a Ride with Confidence Class for people who want to feel safer on the bike, and also a Fix-a-Flat class. What do you think?"

He stands up from his work and looks at me, his face void of expression. He pauses and smiles a tight-lipped smile and says, "You need a website, and a commercial."

"What do you mean a commercial?" I ask.

"Exactly what you just did from the time you walked in. That needs to be your commercial," he says.

My eyes grow wide and I bounce just slightly on my toes, "Cool! So you think I can launch this business on my enthusiasm alone?"

He takes a deep breath and nods, "Yeah. That's exactly what I mean."

Well, it will be a while till I get the commercial, but in the mean time, I'm working on the website. We hope to be up and running soon.

Big shout out to the people who have brought me to this point, encouraged me to start my own business, and continue to inspire me to great heights.

-Laura (Sunny) Drexler