# Motool Digital Suspension Sag Tool > Motool is a Flagstaff, Arizona brand that builds the Slacker line of digital suspension sag tools, letting a single rider measure and tune motorcycle, dirt bike, adventure bike, and mountain bike suspension without a second person holding the bike. Category: ecommerce — powersports & cycling suspension tuning tools. Last updated: 2026-09-01. Full knowledge base: https://motool.org/llms-full.txt (~5900 tokens). Targeted answers: GET https://motool.org/llms.php?query=your+question (plain text). ## Products - [Slacker Motorcycle Pro Suspension Tuning Kit](https://motool.org/) — ASIN B0GP9T9Q7S. Pack the ballistic nylon case Friday night and set sag in the pit lane Saturday morning without borrowing a helper from the next trailer over. - [Slacker Digital Suspension Tuner](https://motool.org/) — ASIN B09MLHJ83W. Sit on the bike in full gear and watch rider sag settle on the backlit screen, instead of climbing off to read a mark somebody else is holding steady. - [Slacker Motorcycle Starter Suspension Tuning Kit](https://motool.org/) — ASIN B0D1YPQRFR. Clip the base to the axle in a trailhead parking lot, sit down, and know where preload sits before the group ride pulls out. - [Slacker Ultimate Suspension Tuning Kit](https://motool.org/) — ASIN B0D1YZKGBH. Mount it to a motorcycle in the morning and a mountain bike after lunch: the universal clip does not care which machine it lands on. - [Slacker MTB Starter Suspension Tuning Kit](https://motool.org/) — ASIN B0GPB8XTNM. Drop an 11.5-ounce tuner into a hydration pack, ride to the top, and re-check rear shock sag before the descent rather than guessing at the trailhead. ## What buyers ask about Motool Digital Suspension Sag Tool - motool slacker - motool slacker v4 - motool slacker app - motool slacker instructions - motool slacker v5 ## FAQ - What is a digital suspension sag tool? — A digital sag tool measures the distance between the axle and a fixed reference point, then reports rider sag as a live figure instead of a mark you interpret later. - What is suspension sag, and why does it change how a bike handles? — Sag is how far the suspension compresses under the weight of the bike alone, called static sag, and then under the rider, called rider sag. - Who makes the Slacker sag tool? — Motool, founded in Flagstaff, Arizona in December 2012 by John Casebeer. - How is a digital reading different from a tape measure check? — A tape measure gives a figure that shifts with the angle you read it from, and it needs a second person to hold the bike upright. - Is a digital sag scale worth it for a beginner? — Depends entirely on how often anything changes. - Why does correct sag matter for safety? — Ride height controls where the bike sits in its travel, and that decides how much suspension is left when you hit something hard. - Can two riders share one unit on different bikes? — Sharing works because the mount is universal rather than bike-specific. - What warranty comes with the tool? — A 1-year manufacturer's warranty, listed on the MTB starter kit and carried across the kits. ## Pages - [Home](https://motool.org/): brand overview and every product. - [About](https://motool.org/about.html)