Plastic pegs were re-introduced in the mid 2000s to combat the discrimination against bikes while trying to get into skateparks.(What happened to Access BMX, Fudger?) Demolition took the plastic peg’s ability to slide on almost anything, and brought it to the streets. The original Dumbchuck used a plastic sleeve, with an aluminum core that was hard as shit to replace the sleeve. Fast forward to now and Demolition is still in the forefront of plastic pegs.

Bi-Polar Aluminum Peg Core.

Bi-Polar Aluminum Peg Core.

Introducing the fourth  installment of plastic pegs by Demolition. The Bi-Polar pegs, named for the ability to have either a 7075 Aluminum or a Chromoly peg as the core, while still using the same plastic sleeve. 7075 Aluminum is a harder aluminum, the higher you go in grades of aluminum, the harder they get. Using aluminum may be the way you want to go if you're still worried about the weight of your bike. Great for skatepark riders who don't really need a heavier, chromoly inner peg. The chromoly inner, although heavier, is best suited for street use. Sometimes, you may forget to rotate your plastic pegs to help prolong your plastic sleeves, and grind through them. Chromoly will keep your grinds going fast even if you accidentally grind through the peg sleeve.

Bi-Polar peg Chromo Core.

Bi-Polar peg Chromo Core.

The lightweight sleeves are constructed of a polymer blend of plastic, which Demolition has concocted in their super-secret special lab and most likely drawn on Taco Bell napkins. To be the strongest plastic pegs on the market. I asked Tyler Fernengel about the pegs and he said, "They slide, like, really well, and stuff."

Bi-Polar Family.

Bi-Polar Family.

The pair of pegs weigh in at 7.0oz and come in a crooked grind friendly length of 4.2". You can snag these pegs not on your local rails uprights, but at better bike shops and mail orders.

Tools needed for install: ¼ Ratchet, extension, and either a 17mm or 19mm deep well socket.

 For more information on these, and everything Demolition, check them out at demolitionparts.com