JConcepts Boss Green 1.9 Crawler Tyres 4.25" (JC4157-02)
Brand: JConcepts
Part No: SCH-JC4157-02
Out Of Stock
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Description
The JConcepts Boss in sticky green compound (SCH-JC4157-02) brings a focused competition design to 1.9 crawler and Sporty Mini classes. Built on a narrow 1.38" carcass with a 4.25" overall diameter, this tyre pairs a base pallet with overlaying bar tread to flex, bite and maintain control across varied terrain. Unique H and + inspired tread instances blend hefty lug support with flexible response, delivering forward drive and side-load stability.
A continuous carcass with minimal lettering promotes a competition-friendly slide and grind, while radiused pins arch across the tread and bridge laterally for balanced support. Edges are pulled back from the sidewall to minimise overhang, and exposed sidewall rubber aids traction in dry conditions. Embossed JConcepts logos and item details identify the design, and the tyre is supplied with React open cell inserts to fill and support the carcass.
Key Features
- Original Boss tread pattern with block and bar layout
- Sporty 4.25" outer diameter
- 1.38" narrow carcass width
- Horizontal and vertical flexible tread for grip and stability
- Minimal tread overhang; slide-and-grind friendly sidewall
- Authentic JConcepts lettering and logos
- Exclusive sticky green compound
- Includes React open cell inserts
Suggested Compatibility
- 1.9" Sporty Mini competition wheels
- 1.9" crawler wheels
Design Notes
- Continuous carcass with low-profile branding for consistent contact
- Radiused pin geometry creates an arch and horizontal bridge structure
- Exposed sidewall rubber to assist in dry conditions
- Packaged with holographic tag to identify authentic JConcepts products
- Designed in the U.S.A. and developed with team driver feedback
Secured by Stripe
Specifications
A new design from the JConcepts laboratory is the Boss tire available in sticky green compound. The narrow 1.38” carcass platform, 4.25” overall diameter designed especially for 1.9” wheels make this a legitimate threat in the Sporty Mini class. The tread layout is unique featuring a base pallet with overlaying bar tread to provide the flexibility necessary to grab, hold, and conquer a variety of terrain. JConcepts has inspired a new style featuring H and + versioned tread instances bringing hefty and flexy together.
A continuous carcass with minimal lettering and logo height looks strong while allowing competition friendly slide and grind. The pins themselves have radius built in giving an arch to the tread in the radial orientation and a bridge structure in the horizontal direction. The newly designed block and bar layout provides forward flex grip with sideload stability across the tread. The edges of the pins are held back from the sidewall area to minimize overhang. Exposed sidewall rubber material helps in dry conditions where the sticky compound can assist without hinderance.
Embossed JConcepts logos, item name, part number, and sizing help identify the performance item and heritage of the design. React open cell inserts have a medium feel and fills the tire appropriately to conditions. The JConcepts tires are packaged and tagged with holographic decal on the rear of the packaging to help customers identify authentic products. The JConcepts team builds, tests, and travels the world to support the brand and gathers valuable driver feedback in search of the best appearing and performance items on the market.
The product is designed in the U.S.A. and always backed by JConcepts customer service, supported, and developed by professionals with style. Look for reputable dealers and distributors and demand authentic products – choose JConcepts
Features:
- Original, Boss tread pattern
- Fits 1.9” Sporty Mini competition wheel
- Sporty, 4.25” diameter
- 1.38” narrow carcass width
- Horizontal and vertical flexible tread
- Unique block and bar pattern
- Minimal tread overhang
- Friendly slide and grind sidewall
- Authentic JConcepts lettering and logos
- Exclusive sticky green compound
- Includes React open cell inserts
- (Fits – 1.9” crawler wheel)
Key Info:
- Brand: JConcepts
- Part No: SCH-JC4157-02
- Barcode: 5051294218904
Delivery & Returns
Standard Shipping
£3.95 to most of the UK
Express Shipping
£6.95 to most of the UK
Worldwide Shipping
Available at checkout
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