Pro-Line 1.9" Single Stage Closed Cell Rock Crawling Foam Inserts (2)

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Pro-Line 1.9" Single Stage Closed Cell Rock Crawling Foam Inserts (2)
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Pro-Line 1.9" Single Stage Closed Cell Rock Crawling Foam Inserts are molded from lightweight, waterproof blue closed cell foam material and are perfectly sized for Pro-Line 1.9” XL sized crawler tires. These inserts are contoured to match the sidewall shape of the big XL size tires to give them the correct appearance and improved performance. Deep grooves along the top of the foam provide a softer feel for more grip while maintaining a fully supported sidewall for maximum side-hilling performance. These inserts are extremely durable and will go the distance no matter where your adventure takes you.


Features:

  • Contoured to perfectly match Pro-Line’s 1.9” XL Tires
  • Extremely Durable
  • Lightweight and Waterproof
  • Provide unmatched Sidewall Support
  • Deep Grooves for More Grip
  • Improved Performance and Appearance
  • Unique Pro-Line Blue Color

Fits:

  • Interco TSL SX Super Swamper XL 1.9” (PRO1197-14)
  • Flat Iron XL 1.9” (PRO10112-00)
  • BFGoodrich Baja T/A KR2 1.9” (PRO10118-14)
  • Hyrax 1.9” (PRO10128-14)
Specifications:
Height: 4.15" (105mm)
Width: 1.60" (41mm)

This product was added to our catalog on October 19, 2016

Kalden Yhonjan
Verified Owner
Sunday, May 9 2021 (about 2 years ago)
Pro-Line 1.9" Single Stage Closed Cell Rock Crawling Foam Inserts (2)
Bought these to replace the stock Hyrax 1.9 (Predator compound) on my TRX-4 Sport (3kg, 6.6lb) crawler.

The foams are quite a bit smaller in height to the tire carcass. This however works well as the gap between the hard foams and the tire carcass allows some flex and deflation increasing the contact patch.

Compared to the stock foams (which were too soft) you can expect much better handing. The steering is more precise and controlled even on high speeds or when making a turning descent off a steep incline there is minimal understeer. You can expect better technical line control and recovery with this tire foam combination.

One thing is that the foams has a band that is designed to fit in the groove of a Pro-Line wheel to eliminate lateral movement within the tire. Using a non-Pro-Line wheel may cause some lateral movement of the foams when installed in tires during use with tires with weaker sidewalls. Compared to the Hyrax the Cannon Trails performed much better in this aspect when using the SSD wheels due to sidewall thickness being much more thicker than the Hyrax which holds the foam much more securely (time will tell).

Over the stock you will find the tire sits much taller because there is little compression of the tires with my particular rig weight. This has an effect of raising the CG slightly and causes body angles a little higher at the corners when climbing over obstacles as normally softer foams will allow for the tires to squat a little more at pressure ends of the vehicle. This can cause some changes in the vehicle handling due to the changing CG dynamics making it a little bit more unpredictable.

Works very well with the stock TRX-4 Cannon Trails and is water proof. I would give it 5 stars if the band was removed to make it more suitable for other wheels brands.
Perry_zilla
Verified Owner
Sunday, Aug 28 2022 (about a year ago)
Pro-Line 1.9" Single Stage Closed Cell Rock Crawling Foam Inserts (2)
I like it for trail heavy rig over 8 pounds makes side hilling more stable
Christian Sutter
Verified Owner
Saturday, Feb 5 2022 (about 2 years ago)
Pro-Line 1.9" Single Stage Closed Cell Rock Crawling Foam Inserts (2)
I use these with JConcepts Landmines 1.9” tires for use in water. They will be much stiffer than typical foams, but this would be ideal if your crawler is very heavy. I would not recommend these for a lightweight crawler because the tire will not conform well to rocks. When sidehilling the tires hold their shape and the sidewalls remain stiff.
Nelson Leung
Verified Owner
Friday, Jun 18 2021 (about 2 years ago)
Pro-Line 1.9" Single Stage Closed Cell Rock Crawling Foam Inserts (2)
The 5 star rating is for both the service from Amain Hobbies and the quality of these foams. Proline always makes great products. I recommend these foams for any trail or crawler R/C vehicle.
Brian Doll
Verified Owner
Monday, Aug 30 2021 (about 2 years ago)
Pro-Line 1.9" Single Stage Closed Cell Rock Crawling Foam Inserts (2)
Very firm and good for heavy trucks but they should be a bit wider too.
Greg Browne
Verified Owner
Sunday, Oct 29 2017 (about 6 years ago)
Pro-Line 1.9" Single Stage Closed Cell Rock Crawling Foam Inserts (2)
They really allow the tire to wrap around the sides abit and gain more traction. It's weird when you first install them because they are so much smaller than a normal foam but they really work well.