hex wrench

Also referred to as allen wrench (or misspelled as alan) and it is a necessity for your toolbox. A good set of metric allen wrenches is likely the most essential tool for modern bicycles. They are hexagonal rods of varying width (1mm – 10mm) designed to fit the many bolts on modern bikes from water bottle cage, to headset, to crank bolts. If you find yourself working on bikes for a significant portion of your week, a nice set of allen keys is a must. I like the L shaped ones with a nice rubber or plastic molded grip at the bend. For many a compact multi-tool that includes the most common allen key sizes will be all that is required. Alternatives to allen wrenches include hexagonal rods of varying width by mm or even a good set of metric hex wrenches will do the trick. Just buy a set.

hex wrench Tutorials

Embedded thumbnail for How to Replace an SRAM Crank and Bottom Bracket

How to Replace an SRAM Crank and Bottom Bracket

I'm Mike from tree fort bikes. Today we're gonna show you how to remove and install a SRAM crank and external bottom bracket.

To do this work we're going to need a few tools, a 16 notch...

Company: Park
Type: Repair Tutorial
Embedded thumbnail for How to Replace a Shimano Threaded Bottom Bracket

How to Replace a Shimano Threaded Bottom Bracket

There are too common types of bottom brackets on modern bikes.

One is the press bit the other one is the threaded which is exactly what we've got on this bike. Here in this video we can...

Company: Park
Type: Repair Tutorial
Embedded thumbnail for How to Bleed Avid Hydraulic Brakes

How to Bleed Avid Hydraulic Brakes

Avid hydraulic brakes require DOT 4 or DOT 5.1 brake fluid so DO NOT USE MINERAL OIL.

The Avid brake bleed kit comes with two syringes, one to catch discarded fluid and one to push clean...

Company: Avid
Type: Repair Tutorial
Embedded thumbnail for How to Adjust a Caliper Brake

How to Adjust a Caliper Brake

Adjusting a caliper brake is pretty straightforward.

First off, loosen up the cable anchor bolt with an allen wrench. Make sure the quick release lever on the caliper is closed and not...

Part brakes
Type: Repair Tutorial
Embedded thumbnail for How to Adjust Your Road Bike Brakes

How to Adjust Your Road Bike Brakes

Adjusting your road bike brakes is a pretty straightforward matter. And faulty braking, at any level, is something you don’t want.

First, you’ll want to look at what is going on. Maybe the...

Company: Park
Type: Repair Tutorial
Embedded thumbnail for How to Adjust Shimano STI Shifters

How to Adjust Shimano STI Shifters

“STI” stands for “Shimano Total Integration” and it refers to the fact that the gear shifter and the brakes can be accessed in the same lever.

How it works is that the lever is a vertical...

Company: Park
Type: Repair Tutorial
Embedded thumbnail for How to Adjust a Grip Shift Bike Shifter

How to Adjust a Grip Shift Bike Shifter

Grip shifters are basically rings that twist on the handlebar itself. They differ from the trigger shifters in that they don’t have a lever extending from the handlebar, creating a bit of...

Tools hex wrench
Company: SRAM
Type: Repair Tutorial
Embedded thumbnail for How to Overhaul a Threaded Headset

How to Overhaul a Threaded Headset

When you want to overhaul your threaded headset, remove the handlebar stem and use a wrench for the locknut. Remove the spacers and the top race. Check the races for pitting. Remove fork and...

Company: Chris King
Type: Repair Tutorial
Embedded thumbnail for How to Install a Threadless Headset

How to Install a Threadless Headset

A headset is basically the piece that holds the fork to the frame of a bike, thereby allowing for steering. A sealed bearing headset normally has a plastic or rubber gasket to protect the insides...

Company: Cane Creek
Type: Repair Tutorial
Embedded thumbnail for Replacing Your Mountain or Road Bike Brake Pads: When Do You Have to Do It and How?

Replacing Your Mountain or Road Bike Brake Pads: When Do You Have to Do It and How?

Your brakes are hardworking pieces of your kit that you need to check on regularly. You may not think it but bits and pieces of gravel can get stuck in your pads, causing scratches on your rims....

Part brakes
Company: RockShox
Type: Repair Tutorial
Embedded thumbnail for How to Install Hydraulic Disc Brakes

How to Install Hydraulic Disc Brakes

Installing disc brakes is more often than not, a considerable upgrade for anyone who is serious about their mountain biking. You won’t have to worry about wearing down your rims and about trying...

Type: Repair Tutorial
Embedded thumbnail for How to Bleed Shimano Hydraulic Disc Brakes

How to Bleed Shimano Hydraulic Disc Brakes

Hydraulic brakes work by applying pressure to a liquid in a tube. They work by means of a piston in the lever which shoots liquid into the caliper piston which causes the brakes to clamp...

Company: Shimano
Type: Repair Tutorial
Embedded thumbnail for How to Adjust and Straighten Disc Brakes

How to Adjust and Straighten Disc Brakes

Adjusting disc brakes is pretty straightforward. What you’ll need is a rubber band and an allen wrench.

Yep. That’s it.

To start, you’ll have to slightly loosen the mount bolts that...

Part brakes Disc
Company: Park
Type: Repair Tutorial
Embedded thumbnail for How to Install a Sealed Bearing Headset

How to Install a Sealed Bearing Headset

A headset is basically the piece that holds the fork to the frame of a bike, thereby allowing for steering. A sealed bearing headset normally has a plastic or rubber gasket to protect the insides...

Company: Cane Creek
Type: Repair Tutorial
Embedded thumbnail for How to Install MTB Grips

How to Install MTB Grips

Grips on your bike are pretty important. You need something soft and comfy to hold on to when you come flying off of a hill or some traction when you’re busting some seriously hardcore bike moves...

Type: Repair Tutorial
Embedded thumbnail for How to Adjust your Bike’s Geometry/Seat Height/Stem Length

How to Adjust your Bike’s Geometry/Seat Height/Stem Length

Most people who start biking don’t realize that bikes come in different sizes. However, if you have a tall person and a short person get on the same bike, the difference can be clearly seen....

Company: FSA
Type: Repair Tutorial
Embedded thumbnail for How to String Brake Cables

How to String Brake Cables

Stringing brake cables is pretty straightforward.

You’ll need:

  • Allen wrench
  • Cable cutters
  • Brake housing
  • Brake cable
  • Ferrule
  • Cable...
    Company: Truvativ
    Type: Repair Tutorial
  • Embedded thumbnail for Mountain Bike V-Brake Adjustment

    Mountain Bike V-Brake Adjustment

    Rim brakes are simple. Rim brakes are fun. Rim brakes sometimes need adjusting. If you pull the lever and the brakes are still loosy goosey, then it's time to tighten up the tension on...

    Company: Shimano
    Type: Repair Tutorial
    Embedded thumbnail for How To Adjust Sidepull Brakes on a Road Bike

    How To Adjust Sidepull Brakes on a Road Bike

    Misaligned brake pads can cause a decrease of braking power, or even a blowout! With 5 minutes of your time, you can ensure that you have the ability to stop when you're supposed to. Here's the...

    Company: Park
    Type: Repair Tutorial
    Embedded thumbnail for How To Adjust a Mountain Bike Front Derailleur

    How To Adjust a Mountain Bike Front Derailleur

    How To Adjust a Mountain Bike Front Derailleur

    Tools you will need:

    allen key

    ...
    Company: Maxxis
    Type: Repair Tutorial

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