Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
Your 1.9 crawler tires are the single thing between your rig and the top of that boulder. Too hard and you slide, too soft and you tear — the wrong rubber makes a chassis feel like a toy. This guide walks you through the real trade-offs in compound, height, and tread pattern so you know exactly which set belongs on your axles.
I’m Rikta — the founder and writer behind FitlyFast. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
Whether you drive a TRX4, SCX10, or Redcat Gen8, the right set of 1.9 crawler tires decides whether your rig climbs that line or spins out halfway up.
Quick Picks
- MEUS RACING 1.9 Tires – MS6 MPRO PIN — Premium Performer
- HOBBYSOUL 4pcs RC 1.9 Mud Slingers Tires — Tall & Capable
- Goolsky 4Pcs AUSTAR AX-4020C 1.9 Inch Crawler Tires — Complete Package
- INJORA King Trekker 1.9″ S5 All Terrain Tires — Trail King
- Pro-Line Racing Class 1 BFG KM3 1.9 Predator Tire — Scale Icon
- INJORA RC Tires 1.9inch 4Pcs Rubber Tyre Set — Budget All-Rounder
- GLOBACT 1.9 Crawler Tires 1/10 RC Rubber Tires 118 * 45mm — Trail Value
How To Choose The Best 1.9 Crawler Tires
Picking the right tire starts with understanding your terrain. A soft, sticky compound that works wonders on dry granite will ball up in mud, while a hard, pin-style tread that digs through loam will skate across a slickrock face. Know your local trails before you buy.
Compound Softness
The rubber compound determines how your tire conforms to rock irregularities. Softer compounds (often labeled “S5” or “Super Soft”) deform around edges for maximum bite but wear faster. Harder compounds last longer but sacrifice grip on smooth, angled surfaces. Buyers report that the stickiest tires completely change a rig’s crawling ability on technical lines.
Tire Height and Width
A taller tire gives you better clearance and a gentler approach angle over obstacles. But a tire that is too tall for your chassis can rub on fenders or links, and a wider tire adds stability at the cost of steering authority in tight ruts. Measure your clearance before jumping to a 4.72-inch tire.
Foam Inserts
The foam inside your tire shapes its contact patch and absorbs impacts. Some stock foams are too stiff, causing the tire to ride on its center lugs rather than conforming to the rock. Many experienced crawlers swap out stock foams for dual-stage or silicone inserts to dial in the perfect feel for their rig’s weight.
Quick Comparison
| Model | Best For | Diameter | Weight | Compound | Amazon |
|---|---|---|---|---|---|
| MEUS RACING MS6 MPRO PIN | Premium Rock Grip | 1.9 Inches | — | MS6 Orange-Dot | $29.99Amazon |
| HOBBYSOUL Mud Slingers | Tall Mud & Trail | 4.72 Inches | 0.9 Pounds | Soft Sticky | $39.00Amazon |
| Goolsky AUSTAR AX-4020C | All-in-One Budget Set | 1.9 Inches | 0.95 Pounds | Super Soft | $31.99$35.49Amazon |
| INJORA King Trekker S5 | All-Terrain Trail | 118mm | 14.9 ounces | S5 Super Soft | $26.99Amazon |
| Pro-Line BFG KM3 Predator | Scale Look + Grip | 4.19 Inches | 0.32 Pounds | Predator | $24.99Amazon |
| INJORA 1.9 Rubber Tyre Set | Budget All-Rounder | 4.3 Inches | 10.6 ounces | Soft | $21.99Amazon |
| GLOBACT 1.9 Crawler Tires | Trail & Loose Dirt | 118mm | 14.9 ounces | High-Quality Rubber | $26.99Amazon |
In‑Depth Reviews
1. MEUS RACING 1.9 Tires – MS6 MPRO PIN
$29.99as of Jul 5, 5:29 AMThe pin tire that survived a 10-mile endurance gauntlet without losing its bite.
This set uses the MS6 Orange-Dot compound from MEUS Racing — a super-soft rubber that wraps around rock ledges like clay. The tread combines three different pin shapes across the center with sidewall friction stripes, giving you forward bite and lateral grip on off-camber sections where a standard lug tire would skate sideways.
Owners mention using these on a 7.5lb TRX4 brushless truck for a 12-hour endurance challenge that covered rocks, wood, snow, and water over a true 10-mile run. That kind of abuse tells you the compound can take a beating. The included foam feels good for a lighter rig, though some owners swap in CI Lil Novas to dial in the feel on heavier builds. These are true 1.9-inch tires at a 1.77-inch inner diameter, so they fit standard beadlock wheels on SCX10, TRX4, and Redcat Gen8 chassis.
Unlike the Pro-Line KM3 which excels as a scale replica, the MEUS pins are pure performance rubber — less visually realistic but measurably more confident on smooth granite and wet rock. They are less ideal in deep sand or soft dirt where a paddle-style tread would dig better, but for technical crawling they punch well above their price bracket.
Compound confidence: The MS6 Orange-Dot compound delivers rock grip that rivals bigger-name brands at a lower cost, with a 1-year manufacturer warranty as backup.
One trade-off: The pin tread is not self-cleaning in sticky mud; you will need to pick packed dirt out of the gaps on wet clay trails.
Grab these if: you run technical rock lines and want a super-soft, competition-style pin tire that has proven itself over extreme endurance runs.
Pass if: your trails are mostly deep mud or loose sand where a taller, paddle-style tire would perform better.
2. HOBBYSOUL 4pcs RC 1.9 Mud Slingers Tires
$39.00as of Jul 5, 5:29 AMA 4.72-inch tire that lifts your chassis over obstacles without needing portal axles.
At 120mm (4.72 inches) tall, these Mud Slingers are among the tallest tires in this roundup. That extra height translates directly into better clearance and a gentler approach angle — your front bumper climbs ledges rather than smacking into them. The width sits at 43mm (1.69 inches), so it fits most 1.9-inch beadlock wheels without rubbing on standard TRX4 or SCX10 links.
The HOBBYSOUL Soft Sticky compound is noticeably tacky — customers note it passes the “pinch test” and transforms a stock truck’s climbing ability over rocks and roots. The 6-ply carcass adds durability, though some owners warn that the rubber tears more easily than a harder compound on sharp rocks. One buyer recommended removing the stock foam and switching to dual-stage or 3D-printed inserts for better conformability on a 10-pound rig. For woods and trail running, these look scale and perform well; for pure rock crawling, the soft rubber and moderate stickiness work best when paired with the right inner foam.
Height advantage: At 4.72 inches, these are 0.53 inches taller than the INJORA 1.9 Rubber Tyre Set’s measured height of 4.3 inches, giving you noticeably more under-chassis clearance.
Soft rubber caveat: The compound grabs well on dry loam and wet mud but can chunk on sharp granite edges; trim the smaller inner tread blocks to improve mud release.
Best for: trail drivers and general crawlers who want a big, scale-looking tire that boosts clearance while staying affordable.
Skip if: you only run sharp, technical rock and need a tougher carcass that resists tearing.
3. Goolsky 4Pcs AUSTAR AX-4020C 1.9 Inch Crawler Tires
$31.99$35.49as of Jul 5, 5:29 AMTrue beadlock wheels and soft rubber, all in one box for less than most bare tire sets.
These AUSTAR tires come already mounted on solid beadlock wheel rims, so you skip the gluing or assembly step entirely. The wheel itself is a plastic-and-rubber composite that is more durable than the stock wheels on many RTR rigs. The tires use a super-soft compound with deep, wide-set lugs that claw into rock and loose dirt effectively. One buyer new to crawling put them on an RGT136100 Rock Cruiser and noticed an immediate improvement over the factory rubber.
At 0.95 pounds per set of four, these are noticeably heavier than the Pro-Line class-1 tires (0.32 pounds for a pair) — that extra 3.0x weight comes from the integrated beadlock rims. The added heft lowers the rig’s center of gravity slightly, which helps stability on cambered climbs. A few buyers noted that the axle holes on SCX10 units need slight trimming for a perfect fit, and the front A-arms may require minor clearancing to avoid scraping on full steering lock. Those mods are simple with a file, and the price makes the trade-off easy to accept.
Bolt-and-go convenience: True beadlock rings mean you can swap tire compounds later without any gluing — just unscrew the ring, swap the rubber, and you are back on the trail.
Fitment note: The axle peg holes are slightly undersized for SCX10 axles; a quick pass with a round file solves this in under a minute.
Perfect for: beginners or budget builders who want a complete wheel-and-tire set that runs right from the start without extra gluing or assembly.
Not for: competitive rock crawlers who need a lighter, race-spec tire and run aftermarket inserts.
4. INJORA King Trekker 1.9″ S5 All Terrain Tires
$26.99as of Jul 5, 5:29 AMAn S5 compound tire that feels like it was molded for mixed trail conditions, not just rocks.
This is INJORA’s newest all-terrain offering, using their Super Soft & Sticky S5 compound. The tread pattern is clearly inspired by a Maxxis Trepador, but with wider spacing and varied lug heights across the face. The multi-curve siping helps the tire bite into loose dirt and scree where a standard block tread would spin out. Each tire weighs just 100g (0.22lb), keeping your unsprung weight low for better suspension response.
Reviewers point out that the S5 compound sticks well on mixed trails, but it is not a pure rock-crawling tire — the staggered lugs can fold over on smooth, greasy rock faces where a pin tire would dig in. One owner found the stock foam too soft for a Gen 8 and switched to Injora’s green silicone inserts, which transformed the tire’s conformability. On hard-packed dirt and forest trails, these are a joy; if your local terrain is all exposed granite, you may want a more aggressive pin pattern.
What stands out
- Super-soft S5 rubber conforms to uneven trail surfaces
- Varied lug height improves grip on loose dirt and scree
- Light at 100g per tire, keeps unsprung weight low
Know before you buy
- Staggered lugs fold over on smooth rock, reducing bite
- Stock foam too soft for heavier rigs like the Gen 8
Reach for these if: you drive mixed terrain — dirt, gravel, roots, and moderate rocks — and want a sticky, light tire that tracks well at trail speed.
Look elsewhere if: your crawling is almost entirely on slickrock or greasy granite where a dedicated pin tire would outperform this tread.
5. Pro-Line Racing Class 1 BFG KM3 1.9 Predator Tire
$24.99as of Jul 5, 5:29 AMThe most realistic scale tire here, with a sticky Predator compound that actually delivers on performance.
Pro-Line’s BFG KM3 is a 1:1 scale replica — the tread pattern, sidewall lettering, and general proportions are as close as you will get to the real tire. But this is not just a shelf queen. The third-generation mud-traction technology uses deep, self-cleaning tread blocks and flex zones that wrap around rocks for added bite. The tire comes as a pair (two tires) at an item weight of just 0.32 pounds, making it the lightest option here — a 3.0x weight gap versus the Goolsky AUSTAR set that includes wheels.
Buyers consistently praise the KM3’s sticky tread and realistic flex, noting that it performs best on heavy crawlers with beadlock steelies. The included foam works well for heavier rigs; lighter chassis may need softer inserts to let the tread conform properly. It performs decently in mud but is not a dedicated mud tire — the self-cleaning lugs work best on rocks and hard-packed dirt. If scale realism matters as much as grip, this is the tire to beat.
Scale accuracy: At 4.19 inches in diameter, these are the most visually faithful to a full-size BFG KM3, with the correct sidewall detailing and tread proportion.
Weight trade-off: At 0.32 pounds for a pair, you save significant unsprung weight compared to the Goolsky AUSTAR set (0.95 pounds for four with wheels), but you will need to source your own beadlock rims.
Buy these when: you value authentic scale looks as much as crawling grip and run a heavier rig that benefits from the included firm foam.
Skip if: you are on a tight budget and need four tires plus wheels in one purchase.
6. INJORA RC Tires 1.9inch 4Pcs Rubber Tyre Set
$21.99as of Jul 5, 5:29 AMThe entry-level Injora set that has been a budget benchmark since 2017 for a reason.
A four-pack of pre-mounted tires with foam inserts at a price low enough to outfit a second rig without guilt. The aggressive lugs and narrow profile give it a genuine all-terrain look that suits D90, SCX10, and Tamiya CC01 builds. At 10.6 ounces, this set is 4.3 ounces lighter than the GLOBACT tires — a 41% weight gap — which keeps your suspension responsive. Shoppers say these hook up aggressively on tree roots and dirt, with a perfect 5/5 rating for those surfaces in actual crawling tests.
The measured height is 4.3 inches — smaller than the stock TRX4 tire at 4.65 inches — which slightly reduces approach and departure angles compared to a taller tire like the HOBBYSOUL Mud Slingers. One thorough buyer review gave these 5/5 on tree roots and dirt, 4/5 on loose dirt, 3/5 on grippy rocks, 2/5 on sand, and 1/5 on slick rocks. The stock foam is mediocre and the rubber is not as sticky as premium compounds, but at this price point you are getting a capable trail tire that outperforms most RTR stock rubber.
The upsides
- Excellent traction on tree roots, dirt, and loose soil
- Light at 10.6 ounces for a full set
- Price makes it easy to experiment with different setups
The downsides
- Shorter than stock TRX4 tires, reducing clearance
- Performs poorly on slick rock; foams lack support
Ideal for: a budget-conscious trail driver who runs roots, dirt, and moderate rocks and wants a proven, no-regret tire.
Not for: crawlers who need a tall tire for clearance or regularly tackle greasy slickrock.
7. GLOBACT 1.9 Crawler Tires 1/10 RC Rubber Tires 118 * 45mm
$26.99as of Jul 5, 5:29 AMSticky rubber with big lugs that perform great on sandstone and loose dirt right from the start.
These GLOBACT tires measure 118mm by 45mm — a wide, aggressive footprint with deep, widely-spaced lugs that clear mud and loose soil effectively. The rubber is soft and tacky, giving you confident grip on sandstone, loose dirt, and sandy mud. They fit nearly any 1.9-inch beadlock wheel and are compatible with TRX4, TRX6, Axial SCX10 II/III, Redcat Gen8, and RC4WD chassis. At 14.9 ounces, these are 4.3 ounces heavier than the INJORA 1.9 Rubber Tyre Set — a 41% weight gap — adding slightly more rotational mass but also more rubber on the ground.
The catch, as multiple buyers report, is the foam. The stock foams are very stiff — one owner drilled the front set to soften them up — and the foams tore when removed for replacement. If you buy these, plan to swap the foam inserts for something softer (dual-stage or silicone) and handle the removal carefully. One reviewer noted they are a 5-star tire for a trail truck like the Redcat Gen8 v2 but would not recommend them for competition crawling. The tire rubber itself is excellent for the price; the foam is the weak link.
Rubber quality: The soft, sticky compound outperforms its price tag on sandstone and loose dirt, with deep lugs that dig in rather than sliding.
Foam issue: Stock foams are excessively stiff and prone to tearing during removal; budget for replacement inserts if you want optimal rock conformability.
Best suited for: trail truck owners who want a wide, aggressive tire for mixed loose terrain and are comfortable swapping the stock foam for softer inserts.
Pass if: you want a plug-and-play tire without any modification or foam replacement.
Understanding the Specs
Compound and Softness
The rubber compound is the single biggest factor in how your tire grips a rock face. A “Super Soft” or “S5” compound deforms around surface irregularities, creating more contact area. Harder compounds last longer but slide on smooth stone. If you mostly crawl on dry, textured rock, go as soft as your budget allows. If you run abrasive asphalt or sharp shale, a medium compound will wear better.
Tire Height and Clearance
Tire height directly affects your approach, breakover, and departure angles. A 4.72-inch tire like the HOBBYSOUL Mud Slingers can mean the difference between bumping a ledge and clearing it cleanly. But a taller tire also raises your chassis’s center of gravity, increasing body roll on steep sidehills. Measure your fender clearance and link position before going taller than stock.
Foam Inserts
The foam inside your tire determines how the tread conforms to an obstacle. A stiff foam causes the tire to ride on the center tread blocks, reducing the effective contact patch. A softer foam allows the tire to wrap around edges, but can let the chassis sag on side slopes. Many experienced crawlers use dual-stage or ringed foam inserts to tune the feel for their specific rig weight and terrain.
Tread Pattern
A pin-style tread with tall, narrow lugs excels on bare rock, digging into crevices and edges. A block-style tread with wider lugs performs better on loose dirt, mud, and gravel, offering more forward thrust. The right pattern depends on your primary terrain — if you run mixed conditions, look for a tread with varied lug heights and siping that can shed mud while still gripping rock.
FAQ
Will 1.9 tires fit my TRX4 or SCX10?
What is the difference between a pin tire and a lug tire?
Do I need to glue 1.9 crawler tires?
How do I choose the right foam insert?
Can I run 1.9 tires on a 1/10 scale crawler?
Are softer tires better for rock crawling?
How long do 1.9 crawler tires last?
Can I mix tire brands on my rig?
Final Thoughts: The Verdict
For most buyers, the 1.9 crawler tires winner is the MEUS RACING MS6 MPRO PIN because the super-soft Orange-Dot compound and proven endurance durability give you real rock-crawling performance without the premium price of boutique brands. If you want tall tires that transform your clearance on trails, grab the HOBBYSOUL Mud Slingers. And for a complete wheel-and-tire package that runs right from the start, the Goolsky AUSTAR AX-4020C delivers unbeatable convenience and value for the budget builder.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of July 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
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