In this video tutorial I will show you how to adjust your MTB fork and suspension 00:00 Intro 00:45 SAG 02:50 What is travel 03:12 SAG value table 04:03 SAG for suspension 05:30 Compression 06:44 Rebound or rebound ✍ SUBSCRIBE TO THE CHANNEL - SUBSCRIBE ✍ / mountainbikingtube ☀☀☀ FOLLOW ME ON - FOLLOW ME ON ☀☀☀ ▶ STRAVA: / strava ▶ FACEBOOK: / mtbt123 ▶ INSTAGRAM: / mountainbikingtube ▶ TWITTER: / mtbtube ▶ WEBSITE: http://www.mountainbikingtube.com ✉ MAIL: [email protected] Fork Pump: https://amzn.to/2Pn3Nq5 A proper suspension setup can improve: • riding sensitivity • safety • the suspension's ability to absorb shock The main function of suspension is to keep the wheels attached to the ground. The more the wheel is in contact with the ground, the greater the control of the vehicle. The basic suspension setup is done by adjusting the SAG, compression, and rebound. SAG is the static sag of the suspension. It is nothing more than the amount of sag of the fork when you are sitting still on the bike. The SAG adjustment method also allows less sensitive riders or beginners to obtain a setting that is more or less good. The method, based on a real measurement, is easily usable by anyone. This method will allow you to have a basic setting but not the optimal one, and we will find out why later. Forks ranging from 80 to 110 mm of travel are mainly XC-Marathon forks. For these types of forks the relative SAG should be between 10-15% of the travel. So for an 80mm fork you should import a sag that goes from 8 to 12mm. For Trail forks of 120-140 mm the sag should be between 15 and 25% All mountain-enduro with forks with 150-170 mm travel, the Sag should be between 25-35% For Gravity disciplines, therefore with forks that have travel starting from 180mm and above, you need a Sag of 35 to 45%. The calculation of the sag for the suspension must NOT be done based on the travel, but rather based on the length of the suspension piston. Suppose you have a 60mm piston, and your suspension has 150mm of travel. This size falls into the All Mountain and enduro category, so the SAG should be set between 25 and 35% In my case I set it to 30% so the formula will be 60 * 0.3 = 18mm of SAG Let's talk about Compression now, which together with SAG and rebound is fundamental for tuning the fork. In case the suspension or fork have the SAG to be corrected, this is done by adding or removing air. To do this you need to use a special pump, there are several on the market, the one I use is a very practical and quite precise RockShox (you will find the link to the article in the description. By adding air, you will decrease the SAG, the fork and suspension will be stiffer. The front wheel will sink less and will become more nervous and less predictable. The suspension will be stiffer with less (bobbing, which is that useless sinking of the suspension when we push on the pedals), so on some bikes the efficiency of pedaling uphill will improve. By removing air, you could have too much SAG. You will have a softer fork, less stress on the arms, but you will run the risk of bottoming out making the bike unrideable. The suspension will also be softer, making the wheel more precise. On some bikes the efficiency of pedaling uphill could be reduced due to (bobbing) REBOUND Let's now talk about Rebound in Italian the Rebound The rebound setting establishes the speed and hardness of the suspension during extension, therefore after each compression. The adjustment depends a lot on the types of forks and suspensions and are identified by red wheels. How to adjust it. Normally you start with the rebound completely closed, then by unscrewing it counterclockwise you open it until you reach the degree of softness you want, At EuroBike this year, I asked both Fox and RockShox what the standard Rebound setting was for their forks #mtbt #mtb #mountainbike #suspensions