INTERBIKE: BMX porn

Is this the end for stem pinch bolts? FBM was displaying its Chokehold stem that has a front bolt wedge but BMX star product of the show has got to be Profile Racing's patented H.I.P. stems. Very clever, tidy and a potential time and cost saver for OE BMX and MTB companies. Will the Hidden Internal Piston be licensed and become the new industry-standard way of clamping stems to bars?
Author:
Publish date:
full3135_ProfileChainwheel.jpg

Profile Racing's owner Jim Alley told Bikebiz.co.uk that OE interest in the H.I.P. system had been "huge" at Interbike. No OE has yet to sign on the dotted line, but they no doubt will.

The H.I.P. system isn't exactly a RockShox-type category introduction but it's significant nonetheless.

Here's the description from Profile's catalogue:

"The Hidden Internal Piston stem uses the force of four front bolts to clamp the bars to the stem while simultaneously clamping the stem body to the fork tube using a concave-ended piston through the center of the stem body. This eliminates the need for clamping bolts on the fork tube end. The result is a clean looking component with less weight and greater knee clearance."

Profile has also introduced a new way of installing BBs. Its Evolution bottom bracket (also patented) is installed with two proprietary Profile wrenches instead of a pressing tool or hammer. It's self-removing, when one side is loosened, it forces the other side out.

And since the cartridge is essentially a single unit when assembled the bearings in each half are perfectly aligned, "allowing the crank arm to spin freely like never before," says Profile.

http://www.profileracing.com/

http://www.profileeurope.co.uk

PIX:

Above, Profile's CNC-machine Inferno chainwheel.

Below, the HIP stem

PS

Before certain trials specialists ask, no, there wasn't a great deal of trials stuff at Interbike.

Featured Jobs

Iride

Customer Services Support

i-ride.co.uk I Burgess Hill, Sussex I Competitive Salary Plus Commission I Date Published Tuesday 20th November 2018