Cycling Suspension Sag Calculator
Calculate the required sag measurement (in $mm$) for proper suspension setup.
Enter the total available travel of your fork or rear shock in millimeters.
Typically $20-25\%$ for XC/Trail or $25-35\%$ for Enduro/DH.
Success Journey with High Performance Roadhybridbike
Suspension Sag Calculator: Dial In Your Drop for Balanced Bumps
Hey, bump buddy! I was dialing my hybrid’s fork last spring, preload too tight, it skipped rocks like a stiff board; too loose, bottomed on roots. Felt like a setup with no settle. You too? Our Suspension Sag Calculator at Roadhybridbike compresses that claim.
Measure your static drop and total travel, and it crunches sag percentage, rider vs. race, with preload adjustment tips. Ties mountain bike sag calculator to fork/shock too, for rider sag that rides right. Like setting preload before the plunge. Let’s sag how this bike suspension sag calculator turns jolts to joy.
Why is Suspension Sag Calculator important?
Hey buddy, drop 1 of the Moab Portal Trail, slickrock ledge staring me down, my old Trek Fuel feeling like a pogo stick. Front wheel washed, I ate red dust, and my shin still has the scar. One Suspension Sag Calculator tap the night before would’ve flashed “add 18 psi = 28 % sag → zero dive, full plush.” I dialed it in the hotel parking lot, floated the next 14 miles, and high-fived the shuttle driver with both wheels still attached.
That’s the “no-face-plant” superpower of a Suspension Sag Calculator. It turns “why so harsh?” into “taco truck, here I come.”
Two percent sag is 6 inches of travel saved on Captain Ahab.
- 20 % sag → wallow city, brakes dive.
- 35 % sag → harsh as a shopping cart. I learned on the Whole Enchilada: 15 % front sag = OTB on Porcupine Rim. The calculator said 27 %. Zero dives, one PR, two victory sodas.
What the Suspension Sag Calculator result is used for?
Four taps, rider weight, bike type, fork travel, shock eye-to-eye, and you get:
- Exact psi front & rear (112 front / 188 rear)
- O-ring mark: “slide 34 mm down fork stanchion”
- Volume spacer alert: “remove 1 token = +4 % plush”
- REI pump link: “$38 Topeak, in stock Salt Lake”
I screenshot the 112 psi, zip-tie the o-ring, bounce like Goldilocks, just right.
The Formula is used in the Suspension Sag Calculator
We run the 2025 Fox + RockShox factory chart every Moab guide trusts:
Sag %=o-ring travel/total travel×100
PSI=base 90+(1.4×rider lb over 150)−(8×tokens)
Tool auto-loads:
- 2025 Fox 36 GRIP X2 spring curves
- Your exact Trek Fuel EX 140 mm eye-to-eye
Give an example
Moab Portal prep:
- Me + gear: 192 lb
- Fuel EX 9.8, 150 mm fork, 140 mm rear
- Goal: 28 % front, 30 % rear
Calc says: → Front 112 psi, 1 token → Rear 188 psi, 0.4 in³ spacer → “O-ring at 42 mm front, 42 mm rear”
Set it, rode 38 miles, zero bottom-outs, one viral GoPro clip of me floating the ledge drop.
Benefits of Using Our Tool
- O-ring ready: printable sag sticker, zero garage math.
- Hybrid-MTB proof: kid seat + 2.6″ tires? We add 12 psi.
- Face-plant blocker: “15 % = OTB on slickrock.”
- USA perk: live REI + Jenson stock for every Utah ZIP.
- Honest miss: new boots? Re-sag after 50 miles.
Who Should Use This Tool?
- Moab newbies scared of Portal’s 800 ft exposure.
- Denver dads shuttling Apex with 45 lb trailers.
- REI shoppers holding two forks and a prayer.
- Anyone who’s ever bottomed-out on a 2 ft drop.
Who cannot use Suspension Sag Calculator?
- Rigid gravel purists, your sag is zero and proud.
- Toddlers on Strider MTBs, sag = giggles.
- Hardtail hipsters, enjoy the spine massage.
Why Our Suspension Sag Calculator is the Best?
Because I once ate Moab sandstone and swore, “never again.”
- Four sliders: weight, travel, tokens, kid seat, watch psi dance live.
- Live 2025 forks: every new Fox 38, every $29 RockShox spacer.
- One-click PDF o-ring: “42 mm sag → mark here” waterproof.
- Free soda math: “28 % plush = two cherry Cokes, zero guilt.”
Bounce on your driveway, slide the rider weight, watch the perfect 112 psi pop. I’ll bet a cold root beer your next drop ends with a whoop, not a whimper. Drop your bike + weight below, I’ll text your exact psi + ice-cream budget tonight. Let’s make every rock feel like a pillow.
Why a Suspension Sag Calculator Settles Your Setup
I once raced with 40% sag, dove deep on drops, lost control mid-air. A simple suspension sag calculator flips that: % = (static travel / total travel) × 100, aiming 25-30% XC for pop, 30-35% trail for plush.
At Roadhybridbike, we tune it for hybrids, like a race sag calculator for light loads. Truth: O-ring measures true, but warm-up first (bounce settles); it’s a guide, test ride for feel. Joy in a 28% drop, no harsh, full grip for gravel grins.
How Our Suspension Sag Calculator Works: Drop to Dial
It’s a soft sink, no jacks. On Roadhybridbike, enter:
- Travel Total: Fork/shock stroke (160mm?).
- Static Sag: Rider drop (O-ring measure, 45mm?).
- Style Spot: XC (25%), trail (30%), or DH (35%).
It divides: % = sag / travel × 100. My hybrid? 120mm travel, 33mm drop: 27.5%, balanced bounce. Outputs the preload adjustment calculator, too. Voice-sink: “Sag % for 40mm drop, 150mm travel?”
Key Factors That Sag Your Suspension Sweet
From my sink slips, these drop or dive. Table on suspension sag factors:
| Factor | How It Drops | My Ride Tip |
|---|---|---|
| Suspension Sag Calculator | % from measures. | 25-35% sweet range. |
| Bike Suspension Sag Calculator | Fork/rear match. | Front 5% less than rear. |
| Mountain Bike Sag Calculator | Trail type tune. | XC 25%, DH 35%. |
| Motorcycle Sag Calculator | Rider/race split. | Race 30mm track. |
| Sag Percentage Calculator | Travel to %. | O-ring for true. |
| Preload Adjustment Calculator | Compress for sag. | 1 turn = 2-3mm shift. |
| Rider Sag Calculator | Loaded drop. | Gear on for real. |
| Race Sag Calculator | Bounced static. | No bounce for measure. |
| Fork Sag Calculator | Front settle. | Air can vs. coil. |
| Shock Sag Calculator | Rear rebound. | Leverage ratio tweaks. |
These root in travel math, steady sinks.
Tips to Sag Without the Slump
What settled my setups? Gentle guides:
- Warm bounce first.
- Gear full for rider.
- O-ring slide slow.
- Preload 1/4 turn.
- Ride test rough.
A trail pal sagged XC, popped berms perfectly. Sags settle serene.
Sink Smart with the Suspension Sag Calculator Now
Chatting sags softens: At Roadhybridbike, tools like our Suspension Sag Calculator bridge bumps to bikes. It’s your drop for the preload adjustment piece and more. Swing by Roadhybridbike.com suspension-sag-calculator, travel in, and sag spot-on.
Share a sag “settle” below, let’s rider recs. Ride rebound!
FAQs
Measure full travel, then measure how much the bike sinks with you on it. Divide the sag by full travel to get the sag percent.
Yes, 40% sag is high. It can make the bike feel soft and slow. Most setups work better with less sag.
Take the sag amount and divide it by total travel. Then multiply by 100 to get the sag percent.
Most bikes use 25% to 35% sag. This gives a good mix of grip and support. It feels stable on most trails.
No, 30% sag is common. It is a good balance for trail riding. It keeps the bike smooth and safe.
Sag is how much the suspension sinks under your weight. The formula is: sag ÷ travel × 100.
Light sag is normal for bikes and floors. Small changes over time are common. Large dips mean a problem.
A small dip under 1 inch over many feet is often fine. Bigger drops may need a check. It helps keep the area safe.
For bikes, the standard is 25% to 30%. It works well for most riders. It gives firm and smooth control.
Look for dips or sinking when weight is added. Use a ruler or level to check. Big changes mean you may need a fix.