SKU: 55791229197

JConcepts: Rock Block - 1.9" (4.75" OD)

Sale price$25.65 Regular price$28.50
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Description

JConcepts: Rock Block - 1.9" (4.75" OD)Fits 1. 9 1: 10th crawler wheel Sold in pairs, includes open cell inserts Part Number: 4054 02 JConcepts unloads a new crawling tire option to market with Rock Block. An all condition performer, the Adventure Team from Groveland, Florida has incorporated many new details in these 4. 75 beauties. The asymmetrical design allows the driver to set up the tire to their individual liking but is conveniently marked with L&R denotation. A center structure

Fits – 1.9” 1:10th crawler wheel


Sold in pairs, includes open cell inserts

Part Number: 4054-02


JConcepts unloads a new crawling tire option to market with Rock Block. An all-condition performer, the Adventure Team from Groveland, Florida has incorporated many new details in these 4.75” beauties. The asymmetrical design allows the driver to set up the tire to their individual liking but is conveniently marked with L&R denotation. A center structure sits as a multi-faceted combination of 3 tread lot elements. The solid tread block falls away and draws a little more size toward the bottom and includes a small break-away notch and top tread recess.

 

On the other half of the center line, the split block offers more flexibility and contortion for difficult and uneven terrain. It balances nicely sitting next to its solid counterpart and together and share the burden of competition climbs or day to day trail running business. On the outside, the lugs zig and zag to compliment the center support and include top recess to add additional edges for dry course grip. In-between the outer bars, low height wear bars are applied to tie-in sidewall detail. Clipped edges and staggered formations help offset low and high grip sections of land.

 

Momentum based sidewall attributes have a progression pattern consistent with forward direction. The main ingredient in the sidewall, the low height wear bar ribs connect everything together to help function as a single until during tight climbs and narrow spaces. Recessed cuts in the blocks, extrusions in timely areas help detail out one of the most sophisticated crawling tires in the JConcepts line-up. Recessed JConcepts logo with inner hatching takes position in multiple areas while the tire name, part number 4054 L/R is marked for easy identification.

 

The Rock Block tire includes “open cell” foam inserts to support the ride and packaged and sealed with authentic JConcepts packaging with holographic badge for identification. The JConcepts sticky green compound is a favorite among the RC industry giving just the correct amount of flex and dampen release to support weight and hold traction in difficult situations. The tire is designed for popular 1.9” bead mounting diameter plastic, aluminum, and steel wheels on the market.

 

The JConcepts team builds, tests, and travels the world to support the brand and gather valuable driver feedback in search of the best appearing and performance items on the market. The product is manufactured with high precision and always backed by JConcepts customer service, supported, and developed by professionals with style, and authenticity. Look for reputable dealers and distributors and demand authentic and licensed products – choose JConcepts.

 

Features:

  • Bold Rock Block asymmetrical design
  • Class 2 readiness, 4.75” O.D.
  • Left (L) and Right (R) tire marked on the sidewall
  • Fits industry standard 1.9” diameter wheels
  • Multi-faceted 3 tread lot center structure
  • Lug recessing, zig and zag tread combinations
  • Retro JConcepts sidewall logo with inner hatch pattern
  • Hefty sidewall lugging with connected wear bar detail for continuity
  • Continuous thickness carcass for clean profile
  • Includes open cell insert
  • Available in JConcepts sticky green compound
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 55791229197

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Mary
Pawtucket, US
★★★★★ 5
A great sunscreen I have used for years!
Size: 1.7 Fl Oz (Pack of 1)
This is a product I have used with great success over the years and keep coming back to. Neutrogena is just a brand I really have trusted since my teenaged years of using their glycerin soap. This product does not disappoint. It dries down clear and moisturizes your face in preparation for makeup. I really appreciate that it plays well layering all my products and makeup like some sunscreens do. I also love the higher SPF of the product. I feel like the higher the better when it comes to the damaging sun. There is one thing I do not care for, and that is the smell. It has a strong smell at first when put on, but luckily quickly becomes unnoticeable, otherwise, I wouldn’t buy it. If I had to pick one sunscreen for my face forever, this would be it.
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Reviewed in the United States on May 24, 2026
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SLC83
San Leandro, US
★★★★★ 4
Wears well under makeup!
Size: 1.7 Fl Oz (Pack of 1)
Package arrived on time. No damages and product was in great condition. Pro: Goes on smoothly. Nice coverage. No white cast. Is fragrance free--no weird smell. Washes off easily with a cleansing oil or balm. Great on my sensitive skin! Wears well under my makeup, and it sat well over my vitamin c serum, too. This sunscreen layers with other face moisturizer really well! Con: I can't wear it around eyes; it causes stingy/ burning eyes. But, I have sensitive eyes ( sunscreens or mascara).
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Reviewed in the United States on February 5, 2026
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Kim Conard
Draper, US
★★★★★ 5
Great product
Size: 1.7 Fl Oz (Pack of 1)
Nice product. I like the pump to get a small amount. Glides nicely on my skin and no white residue. Not sticky.
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Reviewed in the United States on May 19, 2026
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chelsea
Charlottesville, US
★★★★★ 5
* Horrible eye pain! * Made my face glow! Great for dry skin as a moisturizer spf
Size: 1.7 Fl Oz (Pack of 1), Size: 1.7 Fl Oz (Pack of 1)
Update* After actually wearing it all day reaction - I wore this in the semi-sun to the beach just to walk to shoreline, not actually sitting in sun or getting into water just a 30 minute walk, and by one hour in my eye started to swell and both eyes were in horrible pain. I had to go was my face and eyes as well as put in repeated cosine to help my eyes. My eyes even over night after thorough washing and cleaning still have a slight pain to them. This also clogged some pores and made me itch and break out. I think if you are going to be in AC and no hint of sun or sweat this would be okay. However if you are buying to walk around in any kind of sun this may not be it. For me personally I will be returning. I was hoping this would’ve worked for me. I love neutrogena products but the reaction to my eyes impossible to use for me. First initial opening and putting in my face reaction- Very light weight. Smaller size than I realized. Makes my skin have a sheen soft glow. I would highly recommend for those who have dry skin. If you have naturally oily skin this may have a little too much sheen in it for you all. It does make my face feel absolutely baby soft. I was looking for a moisturizing spf for my face that doesn’t turn my skin white or cake on and over my skin and this is great. I will try it in the sun today and see how it lasts and works. No white at all which I absolutely love. Feels great in my skin. Fragrance free has barely any smell to it which is also nice. Oxybenzone free. It is slowly drying into my skin which is nice. I do not believe it is water or sweat proof so you will have to reapply. It hasn’t hurt my eyes so far but I will update when I am out in the sun to share more feedback if this feedback isn’t the same. Overall very happy.
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Reviewed in the United States on March 7, 2024
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rsorrell
Los Angeles, US
★★★★★ 5
Excellent purchase
Size: 1.7 Fl Oz (Pack of 1)
It seems like it's a small bottle, but it works really well and goes on smooth. It helps me look healthy and I'm 65 years old.
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Reviewed in the United States on June 1, 2026

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