Friday, March 25, 2011

Bike frame sizes



Bike frame sizes, how to measure and pick the correct size bicycle

Bicycles come in a variety of frame sizes and styles. One model of bike might have two or three frame sizes meant to fit different sizes of riders. While people of average height can ride most model sizes comfortably, and while the seat height can be raised or lowered several inches in each direction to customize your ride, both taller riders and shorter riders want to pay particular attention to the frame sizes they get. If a taller rider gets a frame size too small for them, they will experience an uncomfortable ride and they will pedal in an inefficient manner. If a shorter rider gets a frame size too large for them, they will find it difficult to get on the bike and will experience problems with balance when coming to a stop (as they won't be able to get their feet on the ground without tipping over.)

Here are some tips to determine if a bike frame is right for you:

Sit on the bike
When you are sitting on the bike, and the pedal is at the lowest position, is your leg completely extended? You should be able to touch the ground with the tips of your toes when you're sitting on the bike. An extended leg will give full power when riding the bike. You're more efficient (why waste energy?) and protected from strain on your knees. If you pedal the bike and your knees are parallel to the ground at the highest point, this bike is too small. If you can't touch the floor when you're sitting on the seat, the bike is too high. Keep in mind that most bikes allow for an adjustable seat post, and many models, such as folding bikes, do not have frame sizes. You can simply move the seat to achieve the best position.

Check your height
Many bikes are measured in either inches or centimeters. Sizes can vary from rider to rider, but generally, we follow these guidelines:

16" (40 cm) frame is most suitable for riders ranging from 5' to 5'8" in height.
An 18" (45 cm) frame is most suitable for riders ranging from 5'7" to 6'1" in height.
A 20" or 21" (50-53 cm) frame works for riders 6' and up.
Keep in mind, these ranges are just approximations. You'll find varying ranges listed elsewhere, as there is no set standard. In reality, no matter your height, people have different builds. Two people of the same height can have drastically different proportions: one might have long legs, while the other might have shorter legs. To be as accurate as possible, you'll want to measure your inseam (standing up, along the inside of your leg from your crotch to the floor.)

How to measure the bike
Okay, so you've taken your measurements. Now what? The frame measurements (16", 18", 20", 21" or what have you) measure the vertical seat tube (not to be confused with the adjustable seat post) on the main frame. The measurement begins from the bottom bracket (the cylindrical part of the lower frame in which the pedal cranks are affixed) and goes up to the top of the seat tube, the point at which the seat post enters the main frame.

Now, before you get out your measuring tape to go to the bike store, here is another point of reference: When standing in front of the seat, the highest point of your inseam should be at least one inch above the top tube of the frame. If you cannot stand flat over the top tube of the bike, it is too large.

Note: The frame measurements are not to be confused with the wheel sizes. Wheel sizes can come in at 16", 18", 20" (most BMX's), 24", 26" (the standard wheel size in the U.S.), and 700C/27" (often found on racing bikes and European models.) The wheel measurements are independent of the frame size; when a bike is labelled as an 18" bike, the measurement is referring to the frame size specifically.

Best tips for cycling

Tips for the Best Cycling

About 90 million American adults ride a bike at least once a year, nearly 30 million cycle regularly for recreation, and a few million even commute by bicycle, according to a recent article in American Demographics. Those numbers may rise in the next few years, thanks to federal legislation that encourages local communities to build cycling into their transit plans. That's good not only for the environment, but also for the nation's health, since cycling is one of the best forms of exercise around. It gives the heart and circulatory system a workout; it puts little stress on joints (except perhaps the knees); it can burn 400 to 700 calories per hour; and if you own a bike, cycling is free and can be done just about anywhere.

Here are some steps you can take to improve cycling performance, safety, comfort, and enjoyment:

Use your head

1. Absolutely crucial: always wear a helmet. Of the nation's 800 annual cycling deaths, head injuries account for about 60%. If all cyclists wore helmets, perhaps half of these deaths and injuries—especially in children—could be avoided. Choose a bright color, and make sure the helmet fits properly. It should sit horizontally on your head and shouldn't move about.

Do the right thing

2. Brake right. To exert optimal pressure, brake with your hands at the ends of the levers. For a quick stop, as you press the brakes firmly, slide your buttocks to the very back of the saddle. This will keep the rear of the bike down so that you don't flip over the handlebars.

3. On a long downhill, don't stay on your brakes. That may overheat the tire's rim and could cause a blowout. It's safest to "feather brake"—that is, tap the brakes, applying intermittent pressure. This is wise in wet weather, too.

4. Don't pedal in high gear for long periods. This can increase the pressure on your knees and lead to overuse injuries such as biker's knee. Shift to lower gears and faster revolutions to get more exercise with less stress on your knees. The best cadence for most cyclists is 60 to 80 revolutions per minute (rpm), though racers pedal in the range of 80 to 100 rpm.

5. Going uphill, shift gears to maintain normal cadence. On a long hill, conserve energy by staying in your seat.

6. When cycling at night or when visibility is poor, wear brightly colored, reflective clothing, and use your headlight. In fact, wearing bright colors is a good idea at any hour. Also consider a rear strobe-type light (attached to the bike or your belt) to enhance visibility at night.

Easy rider

7. Make sure your bike fits. Handlebars, saddle, wheels, gears, and brakes can all be adjusted to match your size and riding ability, but the frame has to fit from the start. To find the right frame size, straddle the bike and stand flatfooted: on a road bike, there should be one to two inches of clearance between your groin and the top tube. On a mountain bike, the clearance should be two to three inches or even more.

8. Position the saddle right to protect your knees. At the bottom of the stroke, your knee should be only slightly bent. If your knee is bent too much, the seat is too low, and you will lose stroking power and strain your knees. If the knee locks when extended, or if you have to reach for the pedal, the seat is too high, which can also stress the knee. The saddle should be level.

9. Position the handlebars correctly—one inch lower than the top of the seat. Drop handlebars (preferable because they allow you to change your riding position) should be about as wide as your shoulders or slightly narrower. Some cyclists who suffer from neck or back discomfort may prefer upright handlebars.

10. To avoid saddle soreness, get the right seat. The hard narrow seats on racing bikes can be particularly uncomfortable for women, who tend to have widely spaced "sit bones." Special anatomically designed saddles—wider and more cushioned at the back—are easy to install. Gel-filled saddles or pads or sheepskin pads can ease the pressure and friction.

11. Change your hand and body position frequently. That will change the angle of your back, neck, and arms, so that different muscles are stressed and pressure is put on different nerves.

12. Don't ride in the racing "drop" position (with your hands on the curved part of the handlebars) for a long time. This may cramp your hands, shoulders, and neck.

13. Unless you're an experienced cyclist, don't use those special aerodynamic handlebars—shaped like an upside-down "V"—which let you lean forward on your forearms and thus reduce wind drag and increase your speed. These increase the risk of injury.

14. After a long uphill, don't coast downhill without pedaling. As you climb up the hill, lactic acid builds up in your muscles and can contribute to muscle soreness. By pedaling lightly but constantly while coasting downhill (even if there's little resistance) you can help remove the lactic acid.

15. Keep your arms relaxed and don't lock your elbows. This technique helps you absorb bumps from the road better.

16. Wear the right shorts if you cycle a lot. Sleek cycling shorts have less fabric to wrinkle or bunch up, so there's less chance of skin irritation. For extra protection, choose cycling shorts with special lining or padding to wick away perspiration and no seams at the crotch.

17. Don't wear headphones. They can block out the street sounds you need to hear in order to ride defensively. Cycling with headphones is a misdemeanor in some areas.

Good road sense

18. Ride with traffic, obey all signs, and give right of way to cars.

19. Use hand signals to alert drivers to your intentions.

20. Try to make eye contact with drivers as you pull into an intersection or make a turn, so they know your intentions and you know that they've seen you.

21. Don't ride side by side with another cyclist.

22. Watch out for storm drains, cattle guards, and rail-road tracks. They're all slippery when wet. And if you don't cross them at a right angle, your front tire may get caught.

23. When cycling in heavy traffic, on a narrow road, or on winding downhill roads, ride in the lane with the cars, not to the side, where you're not as visible and may get pushed off to the side. Of course, if a car wants to pass, move out of the way.

Wednesday, August 4, 2010

new link..!

seach for jamboree photos?no reply at the chat box?

catch us at

http://www.facebook.com/groups/edit.php?gid=141111052576972#!/group.php?gid=141111052576972&v=wall

come join us..this group is open for all..!!

Thursday, July 15, 2010

name list tuk jamboree nibong tebal..

udah cukup training ker yoep?jauh ni..tinggi bukit nk d daki nih

506 TAN CHI CHONG MALE M

1116 AZRUL AMIR BIN TAJUDIN MALE KAYUHKONG XXL

1117 HAIRI BIN ISMAIL MALE KAYUHKONG L

1118 MOHAMAD FAIRUZ BIN SALLEH MALE KAYUHKONG L

1119 MOHD NORSAIDI BIN MOHD IDRUS MALE KAYUHKONG L

1120 MEOR ADNANMASWAN BIN MEOR ABDULLAH MALE KAYUHKONG L

1121 MOHAMED HASNI BIN MAT JAWI MALE KAYUHKONG L

1122 SHAHRUL ISMAIL MALE KAYUHKONG L

1123 SHAHRIZAL AMRAN MALE KAYUHKONG M

1124 MEGAT SHARIN NIZAM B. MEGAT MOHD YASIN MALE KAYUHKONG M

1125 ZUBIR BIN DAMANHURI MALE KAYUHKONG L

1126 JEFFRY IRWAN BIN JASNI MALE KAYUHKONG S

1127 RAMAZAN SANI BIN OTHMAN MALE KAYUHKONG M

1128 KAMAL BAHSAH BIN SUJAK MALE KAYUHKONG M

1129 AZIZIL FIKRI BIN ADNAN MALE KAYUHKONG L

1534 CHAN CHUN KWOK MALE M

Monday, May 31, 2010

Jamboree HTR....30/5/10



Snap shot pada starting dan ending jamboree trsebut.Lebih dari seribu org telah menyertai jamboree ini.Pelbagai reaksi dapat di lihat dalam jamboree htr yg diadakan julung kali ini.Kepada pihak penganjur,syabas diucapkan dan diharapkan ada lagi jamboree sebegini diadakan di masa akan datang..

plz click this url for more picture or click at the picture on the right....
http://picasaweb.google.com/kayuhkong/CoratCarikHTRJamboree#

Sunday, March 7, 2010

SERI ISKANDAR MTB ADVANTURE...



wait for it..........

Saturday, February 13, 2010

Jamboree Seri Iskandar...Line up from KAYUHKONG

Barisan teramai yg penah diturunkan...

KayuhKong Cycling Team

1. Ahmad Zamani B Ahmad Zaaba
2. Azrul Amir B Tajudin
3. Hairi B. Ismail
4. Jeffry Irwan B Jasni
5. Mohamad Fairuz B Salleh
6. Mohd Norhasidi B Mohd Idrus
7. Muhammad Sulaiman B Jamal
8. Chan Mun Leong
9. Chan Pak Hong
10. Tan Chi Chong
11. Sum Chee Kai
12. Choy Kin Hoon
13. Fong Ying Hua
14. Chan Chun Kwok
15. Chung Soon Kon
16. Tan Kam Leng
17. Phuan Soon Giap
18. Ong Chin Yeong
19. Chan Chee Kuan
20. David Tan
21. Anthony Chong
22. Cheong Che Hoe
23. Cheong Kok Hong
24. Kam Chee Wai
25. Chan Boon Kooi
26. Lee Lai Kin
27. Man Cheng Hoe
28. Kok Siew Chung
29. Mohd Khairi B Mohmod
30. Mohd Hafiz B Mohd Alias
31. Mohd Fadzil B Jumaris
32. Azizil Fikri B Adnan
33. Kamal Bahsah B Sujak
34. Mohamed Hasni B Mat Jawi
35. Zubir B Damanhuri
36. Loh Siu Leong

Wednesday, January 6, 2010

kawat09..kayuhan yg mendukacitakn sumua warga MTB mlaysia..

1)leman
2)mang
3)attak
4)amir
5)shidie
6)zamani
7)yeop
8)jabore
9)medan
10)jep
*11)badrul....

dukacita dimaklumkan,kawat09 ini sngguh memalukan penganjuran nya..register rm50 tp,tak mencapai tahap kepuasan hati warga mtb..


regards,

leymant

p/s:moderator blog ini kne g outstation for 6 month..so,kalo dpt online pn xdpt nk moderate sgt blog ni..salam

Thursday, December 31, 2009

Kayuh Lasak

Result Kayuh Lasak KayuhKong

1)medan gt
2)attak scott
3)leman schwinn
4)mang khs
5)jep gt
6)yeop merida
7)zamani sars
8)shidie giant
9)jabor tank
10)bard nexus










inilah video yg terbaik dapat d gambarkan mengenai msud KONG..ble dh letih,ni ler jd nye..."TLG PASANG VOLUME SUARA SEKUAT MUNGKIN" kalo x,xdpt mengerti maksud KONG..thnks to jabor<-- he in this video


tak banyak gambar tuk kayuh lasak..harap maklum..


regards,
leman

Monday, November 9, 2009

POWERMAN 2009











wakil dr kayuhkong...
yoi n medan..kategori elit..

ulasan: hrmm cubaan yg bagus dlm powerman ni..ni adalah kali pertama mereka berdua msuk dan berjaya menamatkan cabaran powerman ini..justeru,diharapkan ramai lg ahli2 kayuhkong atau individu yg terbabit dlm sukan basikal atau maraton agar dapat masuk powerman yg penuh dgn cabaran..

Tuesday, June 30, 2009

Keputusan Jamboree Nibong Tebal

Jamboree nibong tebal telah berlalu..ia banyak meninngalkan kenangan manis,pahit semue la..Apa pun,jamboree ni amat mencabar dan cukup meracau...kpd sape yg tak pegi,amatlah rugi...AHAKS!

1. Leman Schwinn (tidur yg cukup)
2. Jep GTS M3 (laju sbb dapat wheelset baru)
3. Amir Giant (tergolek selepas melanggar RUMPUT)
4. Shidie Bianchi (gian nk isap rokok kt dlm utan)
5. Amshah Nexus (peha membesar 2kali ganda pada kedua dua belah peha)
6. Wan pk jam specialized (teringat Nurul kt dalam utan lalu bermesej)
7. Jabor tank (asalkan cukup checkpoint..tak kire kuar kul bpe
8. Herry GTS M5 (kne kuarintin)

Datang Dan Pergi

Patah tumbuh hilang berganti...Inilah yg dialami oleh kayuhkong...Seramai 2 orang ahli telah meletakan jawatan dan seterusnya bersara dalam arena berbasikal ini...Kehilangan mereka ini tidaklah dirasa sangat oleh pasukan (kalo ade pn mcm tak de)...Sebagai penutup kata,selamat bersara...

Choi GTS M5 - bersara dan kini menumpukan dalam bidang kerjayanya
Calok GT - Beralih sepenuh masa kepada arena bola sepak kembali

Barisan Pemimpin Pasukan

Barisan Pemimpin Tertinggi KayuhKong

Yoep Merida - Penaung
Jabor Tank - Pengerusi
Wan PkJam Specialized - Timbalan Pengerusi
Napie GTS M7 - Naib Pengerusi
Bad NexusPro -Setiausaha memerangkap Bendahari
Amshah Nexus- Pengarah Kebersihan
Shidi Bianchi - Penasihat Bahan Kimia Makanan
Amir Giant - Penasihat Teknikal dan Mental Pasukan

Ahli Majlis Tertinggi KayuhKong
Ujang Gt - Penasihat Kecergasan dan Stamina

Barisan Exco,
Mang KHS
Attak Scott
Yeoi/herry GTS M7


Barisan Ahli Majlis Kehormat,
Jep GTS M3
Leman SchWinn
Meydan GT