DEDA Newton

Price Paid:  $192.00 at bikepro melbourne

Favorite Ride:
no cars

Bike Setup:
Time Edge, Trek Madone 5.9 and Specialized Roubaix Comp, but not relevant for this review

Summary:
this is review for Newton 31-86 stem, i.e. 4 degrees not the Newton 8 degree. i have 3 of these: 100mm, 110mm and 120mm for different bikes. great stem, excellent angles, compatible with non-Deda 31.8mm O/S bars. i dont know why others dont make +-4 degree stems, they are perfect for less flexible riders who may find 6 and 8 degree stems too steep.

Strengths:
4 degree angle is less steep then usual 6 or 8 degree so you need fewer spacers flipped down and if flipped up it looks better in +4 position compared to +6 or +8 stems.

Weaknesses:
price is very high for a small aluminium part. alloy is not rocket science! hence average 3/5 value rating.

Similar Products Used:
BBB, Bontrager, Specialized

Price Paid:  $1.00 at Two Wheel Transit

Favorite Ride:
All and except cold rain

Bike Setup:
Very nice.

Summary:
I have used the Newton Stems since they have come out and never bothered to read the reviews until today and was surprised. I am 6'1" and 200+ sprinter/TT sorta racer. I have never experienced the problems mentioned and have four of the stems in various lengths and ages that get swapped around a bit.

I do grease the threads when first out of the box and am careful with getting the bolt tension even, although I use feeler gauges to set even spacing as my torque wrenchs are for bigger stuff.

Strengths:
Light. Been reliable for me.

Weaknesses:
None that I have found.

Similar Products Used:
Think of a high quality stem over the last 35 years and I have used it.

Price Paid:  $0.00

Summary:
Two stems, both of them have broken. It's time to move on to something safer and more reliable.

On the first stem the face plate cracked. That was replaced. Then the steere clam cracked.

I made the mistake of purchasing another Deda stem. This one has lasted just ovre a year and again the steerer clamp has cracked.

And yes I have a torque wrench and follow manufacterer's guidelines.

Strengths:
Good ads and pro sponsorship which provide cover for the junky products they release.

Weaknesses:
Two stems in four years. It's a ratio I can't afford to maintain. Time to move to another manufactuere.

Similar Products Used:
Richtey. These components appear very solid and will be my choice moving forward.
Cinelli

Price Paid:  $80.00 at competitive cyclist

Favorite Ride:
Hwy 9 climb at 6 am

Bike Setup:
Pegrotti TIG welded steel frame (Marcello)
Reynolds Ouzo Pro Carbon frame
Campagnolo Record Group
Mavic Open Pro rims (laced 3 cross)

Summary:
Deda Newton stem with a Carbon steer tube
I recently purchased a Deda Newton stem and a Reynolds carbon front fork with a new cycle purchase. The Reynolds fork included a product warning about not using certain types of offset clamping stems. I called Reynolds up and they said that they have had no problems with Deda stems, even though the Deda Newton has a slight offset clamping system. It seems Reynolds carbon steerer tubes don't like to be point loaded. Anyway I found very slight impressions on the steer tube after low trial clamping from the stem's inside machined edges. I think it is wise to lightly take 400 grit wet sandpaper and relieve the sharp inside aluminum edges on the Deda stem which can have a high stress concentration. Just using caution here.

Strengths:
No clamping problems or stripped bolts.
I think the tightening torque specs are too high.

Weaknesses:
No weakness so far

Price Paid:  $30.00 at private

Favorite Ride:
any and all

Bike Setup:
Giant TCR 0, Mavic Ksyrium SSC SL, ultegra/dura ace, Deda Newton stem & handlebar

Summary:
I have used the Deda Newton stem for two years, and it has performed flawlessly. I built my bike two years ago and have not had to retighten the bolts since. The bolts have never came loose and securely hold the handlebar in place.

I have ridden over various terrain and have encountered numerous road hazards. My bike has been over potholes, cobbles, gravel, dirt, and numerous road surfaces. The stem help up perfectly and I never had problems with loose bolts or stripped threads.

The Deda Newton is an excellent stem that instills confidence in my rides. With proper installation, this stem will not strip or come loose.

Strengths:
lightweight, looks, durability

Weaknesses:
none

Similar Products Used:
3T zepp XL