Pacenti Puts P-DENT Into Production

Dec 20, 2017
by Matthew Letch  
P-Dent

Pacenti Cycle Design’s new bar and stem system enhances rider confidence and safety through increased steering response and better weight distribution.

The brain child of Kirk Pacenti, the maverick behind 650b wheels, P­DENT is built around a dimple in the handlebar clamp area allowing the bar to more closely wrap around a bicycle’s steering tube. The reduction in stem length is unlike anything else on the market, does not affect stem height, and allows easy headset adjustment while out on the trail. Previously seen in a 32mm incarnation and receiving rave reviews in the mountain bike press as prototypes.

P-Dent

P­DENT, which uses a dimple in the center of back of the handlebar allows the use of shorter stems than is afforded by traditional bar and stem systems. This allows for stems down to 20mm in length, unlike anything else on the market. P­DENT can do this without adversely effecting stem height and still leave a headset that can be adjusted while out on the trail, without removing bar and stem. The dimple design meets and surpasses ISO standards for safety. The dimple’s location between the clamps of the stem puts it in an area of low stress. ISO standards for strength are exceeded by a generous margin.

P-Dent Bar and stem

With evolution of bike geometry over the last few years to slacker heads angles, longer top tubes, and steeper seat angles, stem lengths have been shrinking at the same time, while the current crop of stems stops at minimum length of 30mm with the P­DENT system the bar effectively wraps around the steerer tube allowing for a shorter stem down to 20mm in length.

P­DENT continues a trend toward long and low geometry characterized by longer top tubes and shorter stem lengths. Brands such as Mondraker, Geometron, Pole, and Transition to name a few have been pushing the limits using current available stem lengths. P­DENT, gives the opportunity to explore new avenues of bike fit, while retaining a low front end and traction over the front wheel. You can also use it to upsize a frame if you’re between bike sizes, and there’s plenty of riders that will just appreciate the nimble handling afforded by the bar and stem combo.
P-Dent

One of the most noticeable effects of the shorter stem in the P­DENT system is quicker and more responsive steering. Because hands are brought back and closer to the steering axis, very little input is required to change lines or keep the front wheel tracking as the rider intends through rough and difficult terrain.

Some science for you. With our 25mm stem it takes about 15% less input to effect a 10° directional change at the front wheel when compared to a similar 40mm stem. Multiply that over a few hours of riding, and you're saving a lot of energy.

P-Dent

The options due for release March 2018.
Two carbon fiber bar and stem combination options are available:
1. 15 mm rise with a 25mm stem 2. 25 mm rise with a 25mm stem
Also available to order
1. 20mm stem for those who want to experiment with length.
Both rises of handlebar are contemporary geometry, having a 35 mm clamp diameter with a 5° rise and a 7° sweep. Bars are 800mm wide, and weigh 210g and 220g respectively
(+/­ 10g). The CNC 7050 25 mm stem weighs in at 130 g, giving a combined weight of 340g to 350g.

SAVE $50.00 ORDER NOW AND HELP US TAKE THIS TO THE NEXT LEVEL

The P­DENT system is available now to preorder at a $50.00 early­bird discount. Delivery is expected in March 2018.

Visit pacenticycledesign.com/collections/handlebars for more details, and to preorder.
pacenticycledesign.com/collections/handlebars

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Author Info:
MrMatt1970 avatar

Member since Jan 31, 2014
1 articles

8 Comments
  • 4 0
 If you are really desperate to bring your hand poisition back, just put your stem on backwards, and save the dent in the middle of your bars! -40mm stem. what a revolution!
  • 2 0
 This really looks like the worst place to make the handlebar thinner. Why not have a regular 31mm stem and handlebars with more backsweep (or at least where the backsweep starts earlier) to achieve same geometry?
  • 2 0
 Yeah, or just buy the right size frame? There must be a reason pretty much all WC racers stay with around 50mm stems...
  • 2 0
 @bonkywonky: Well yes but that's not the complete picture. The position and orientation of the hands with respect to the steerer tube axis do have an effect on how the bike corners. I'm not going to judge whether one is to like a certain geometry or not. But it doesn't matter much if you have a 20mm stem and the hands in a certain position or you have a 50mm stem and handlebars bent to bring your hands back into that same position. Yes it may be slightly heavier due to the use of more material, but denting a handlebar in the middle compromises it as well unless you make really wide stem which supports that area.

The media is going on how "progressive and new" short stems are but silly enough it is mountainbiking that first introduced these silly long geometries to only later get things straight again. Yes some commuter bikes have longer stems but huge backsweep as well. Road bikes typically have long stems but the curved handlebars bring the hands back too. Road cyclists only put there hands high on the bars for straight steady sections, not for steering tight sections. I'm not commenting on weight aerodynamic shapes they sometimes make...

I can go completely out of context but I just realized there is a place for a flat bar on a long stem. Trials. Yes Ryan Leech typically rides a short stem and Chris Akrigg rides whatever he can get his hands on, but I'm not going to argue with Danny MacAskill. For real trials, he rides long stems.
  • 3 0
 "Multiply that over a few hours of riding, and you're saving a lot of energy."
Right; because moving the handlebars is the bit that tires you out when riding a bike...
  • 1 0
 Especially as unless you're going really slow, you usually change direction using your weight, not by turning the handlebars.
  • 1 0
 If only OnOff Stoic existed...
  • 1 0
 With OnOff you are stuck with 30mm as the minimum in a regular stem format, and the 10mm stem makes the front end really high, and a pain to fit - I don't think anyone is saying that the Pdent is for everyone, but will be for some people.







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