Suzuki Jimny
2018+ JB74

Factory gearing, tires, angles and brakes for the Jimny, and what the usual upgrades do to it. Every number is from the maker's own figures unless the calculators say otherwise. A few figures here are still waiting on a factory document; the calculators mark them.

Use this truck in the calculators

88.6 in wheelbase · 25.4 in front · 29.7 in rear overhang

Stock tire195/80R1527.3 in tall

Axle ratio4.09–4.3Factory, by trim

Crawl ratio18.1:1Best trim: 1.5, 5-speed manual

Angles36 · 27 · 47°Approach, breakover, departure

Clearance8.3 inFactory figure

Highway mpg33Estimate, not EPA rated

Tire upgrades, worked out

1.5, 5-speed manual, 4.09s, from 195/80R15

Tire	Height	Under the diffs	Speedo at 65	RPM at 65	Gears for daily	Open
235/75R15	28.9 in	+0.8 in	61 mph	3,094	4.3	Open →
31x10.50R15	31.0 in	+1.9 in	57 mph	2,883	4.56	Open →
32x11.50R15	32.0 in	+2.4 in	55 mph	2,793	4.88	Open →
33x10.50R15	33.0 in	+2.9 in	54 mph	2,708	4.88	Open →
33x12.50R15	33.0 in	+2.9 in	54 mph	2,708	4.88	Open →

Stock turns 3,275 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.

Trims

2 we have figures for

Trim	Tire	Transmission	Axle	Angles	Clearance	Open
1.5, 5-speed manual	195/80R15	5-speed manual	4.09	36 · 27 · 47	8.3 in	Use →
1.5, 4-speed automatic	195/80R15	4-speed automatic	4.3	36 · 27 · 47	8.3 in	Use →

Size

Wheelbase: 88.6 in
Front overhang: 25.4 in
Rear overhang: 29.7 in
Height: 76 in
Body: Pickup
Stock tires: 195/80R15

Transmissions and low range

5-speed manual: 4.425 · 2.304 · 1.674 · 1.19 · 1
4-speed automatic: 2.875 · 1.568 · 1 · 0.697

Axles

Front: Suzuki solid front axle, coil sprung
Rear: Suzuki solid rear axle, coil sprung
4.09 ratio: 1.5, 5-speed manual
4.3 ratio: 1.5, 4-speed automatic

Brakes

Front rotor: 11.42 in, 290 mm
Rear: drum

Suspension

Front: two radius arms plus panhard rod, coil springs
Rear: two trailing radius arms plus panhard rod, coil springs (Suzuki calls it 3-link)
Rear layout: Radius arms

Fuel economy

Highway, not EPA rated: about 33 mpg
Where it comes from: Australian rating, highway (extra-urban), scaled to EPA terms (AU Jimny 1.5 5MT 4x4 (2019))
As published: 5.7 L/100km
Source: carexpert.com.au

Brake upgrades

What bigger tires need →

JC74 (Jimny 5-door / Sierra) vented front caliper and rotor swapNo kit; OEM parts.

Aftermarket bumpers

8 listed

Makers almost never publish angles, bottom heights or how far a bumper tucks, so these fill in as owners measure them. Measured yours? Add it on the rig page and every owner of this Jimny sees how it does on their tires and lift.

Front 5

APIO Tactical Front Bumper for Suzuki Jimny (2018+)
ARB Summit Bull Bar with Textured Finish, Suzuki Jimny (3424050)$1,056 · winch ready
Fabryka 4x4 Front Bumper Suzuki Jimny IV 2018-winch ready
Master Forest MF off-road front bumpers 2, Suzuki Jimny 2018-winch ready
Offroad Animal Toro Bull Bar, Suzuki Jimny JB74/JC7495 lb · winch ready

Rear 3

Every calculator, set up for the Jimny

Tire sizeBigger tires: speedo, clearance, angles and brakes.Compare tires RegearHighway RPM on every ratio and mpg.Pick your gears Crawl ratioHow slow it creeps, against other trucks.Work out crawl SpeedometerWhat it really reads on new tires.Fix your speedo LinksAnti-squat and what a lift does to it.Check your links Your rigBuild sheet and measured angles.Start a build sheet LeaderboardsWhere the Jimny ranks against every stock truck.See where it ranks

Source: suzuki.com.au.

Use at your own risk. These calculators are here to help you plan and to inform your decisions, not to sign off on a build. Many numbers are estimates worked out from factory figures, and some factory figures are not yet confirmed. Check every number against your own truck, its manuals and a qualified shop before you buy parts, cut, weld, lift, regear or drive on it. Long Range Desert Tools is not liable for anything you do based on these calculators or their results. The full terms are in our policies.

Suzuki Jimny2018+ JB74