TREK 420 BICYCLE SERIAL NUMBER CHART SERIAL NUMBERS
TREK 420 BICYCLE SERIAL NUMBER CHART FULL

Always be sure all of your stem bolts are properly tightened before riding anywhere a loose bolt in the stem can cause your handlebars to loosen, potentially causing a crash. If you're raising your fork, be sure that your brake and shifter cables are long enough to compensate for the increase in distance. Flip your bike upside down and the serial number is under the bottom bracket. Our history in the sport and our heritage of innovation, design and manufacturing is important to us.

TREK 420 BICYCLE SERIAL NUMBER CHART FULL

The photo below has arrows that are pointing to each potential serial number location. Full Speed Ahead (FSA) produces world class bicycle components for road cycling and mountain biking and we support many of the world’s leading road and mountain bike teams.

TREK 420 BICYCLE SERIAL NUMBER CHART SERIAL NUMBERS

Keep both wheels planted on the ground during handlebar adjustments to prevent the fork from sliding during height adjustments. The majority of bike serial numbers can be found in the following locations on your bike. Once you have them aligned, use the torque wrench to carefully tighten the stem clamp bolts evenly to the manufacturer's recommended torque, usually between 5 to 8 nm. Straddling the bike can make it easier to judge how the handlebars and front wheel line up. Tighten it until it is just barely snug.Īlign the handlebars with the front wheel. Not tight enough, and you'll feel rattling and vibration in your headset. Too tight, and you'll have trouble steering. Once you have the desired number of spacers between the stem and the headset, place spacers on the remaining steering tube until the top spacer extends 3 mm to 5 mm above the top of the steering tube. Rearrange the stem and the spacers until the desired height is reached. Once you remove the bolt and cap, you'll see the star nut inside the steering tube. Use a 5 mm Allen wrench to loosen the top cap at the top of the stem. Bontrager stems usually use 5 mm Allen wrenches, but can sometimes use 4 mm or 6 mm Allen wrenches. Loosen the clamp bolts where the stem meets the steerer tube. Tighten each bolt to the manufacturer's recommended torque, usually between 4 and 8 nm, making sure to keep the faceplate even. Using the torque wrench, tighten each bolt a little bit at a time, keeping the thin space between the stem faceplate and the stem as even as possible.

Trek 420 bicycle serial number chart