Spindle Chat...

ThePennySaved

Member
Lifetime Membership
Nov 9, 2017
16
14
3
AK
It's my understanding the the new spindle has a new geometry. In the video he specifically states a more aggressive "spindle".

Bret R mentions new geometry in this video.

There is also a video somewhere of Bret R with an Expert on edge on a concrete floor showing how the geometry allows the ski to pivot without resistance on the floor (while on edge). The new rubber alone wouldn't do this on a concrete floor. Why would retool for a new spindle if the rubber did the same thing? Time will tell...
Might have to schlep myself down to the dealer and see if I can compare the two spindles. Lots of conflicting information out there right now
 

fugly27

Well-known member
Lifetime Membership
Jan 1, 2011
75
61
18
British Columbia
Perhaps its helpful to know that we've been able to verify, along with a few riders and dealers of ours that DuraPro dampers also fit the 2020 spindles (including the Expert package). As for a change in the geometry of the OEM spindle, if there is one (on the bottom side) it is very, very small.
Yes they do I just installed my new spindles with the durapros that I got last year
 

Barcode

SnoWest Sponsor
Lifetime Membership
Sep 8, 2008
526
191
43
The vid is with stock rubbers. Haven't ridden with the DuraPro's yet.
Silly question barcode, but is the video above with or without the bushings? I’m assuming it’s with. Also, is there a second video so we have an A to B comparison?
The vid is with stock rubbers. Haven't ridden with the DuraPro's yet.
 
Jan 28, 2011
201
137
43
42
Thunder Mountain Lodge
ZRP Spindles as advertised....1.25" rise in height, so everything from the A arms to the running boards are all higher=better...or so I think before test riding. I actually left one stock Expert spindle on to compare with the ZRP spindle. I'm hoping to get a good test ride before changing the other spindle. So far I'm excited about it. If I can I'll repost here with my test results after the ride, but only sun in the forecast in western colorado right now. Thunder Mountain Lodge
 

giddyup

Well-known member
Premium Member
Nov 26, 2007
381
48
28
deer valley sask.
installed the new spindles on my freeride, took about 45min i would consider this very easy to do, ski rubbers and new spindles have much less movement of the ski tip upwards comparded to stock,
 

ebnewbie

Member
Lifetime Membership
Jan 29, 2019
17
16
3
56
I put Durapro bushings on my '19 Summit X halfway through last winter and was quite happy with the results. Absolutely worth the $100 or so. I also spent about 20 minutes on a demo '20 Expert in March and it felt pretty similar to my sled but it was an admittedly short ride.

That said, I am planning on buying and trying the "Expert" spindles this year and putting those Durapro's on my girlfriend's sled. Can't help but tinker ...

Also of note: I recently read on ZRP's facebook page that the "Expert" spindles are actually an existing Ski-doo trail sled spindle and supposedly 1/2" shorter than the Summit spindle. That was the first I had heard of the height different and I haven't been able to confirm it anywhere else. For what it's worth, ZRP said that on their post promoting their new 1.25" riser spindles - can anyone else confirm the height difference between Summit and Expert spindles?
I have a summit and bought the expert spindels.
haven't had a chance to compare them, but I was told they are suppose to be taller. I will try and measure them tommorw.
 

Ace Freely

Well-known member
Lifetime Membership
Jul 6, 2002
2,827
890
113
Wenatchee, WA
Spindles are different. The black ones are the new expert spindle.

... I'm 100% confused AF...

Norona says the only difference is lighter, no geometry changes, yet the pictures show something different...

...has anyone didi a side by side comparison of a stock spindle, an expert spindle, and a ZRP spindle?

Ace
 

cacsrx1

Well-known member
Premium Member
Feb 7, 2008
597
179
43
Highmore SD
... I'm 100% confused AF...

Norona says the only difference is lighter, no geometry changes, yet the pictures show something different...

...has anyone didi a side by side comparison of a stock spindle, an expert spindle, and a ZRP spindle?

Ace
100% confused AF x 2
 

ThePennySaved

Member
Lifetime Membership
Nov 9, 2017
16
14
3
AK
Spindles are different. The black ones are the new expert spindle.
Thanks for posting the pictures @fugly27. Keep in mind those are "upside down" but it appears to me that the Expert spindles are probably pretty damn similar to the standard-height ZRP spindles. That is, ZRP "pulled the ski bolt back 10mm (3/8") to put it perfectly inline with upper and lower a-arms."

I'm not a suspension expert but that would decrease caster which in turn decreases required steering effort. Perhaps that's part of what supposedly makes it track better through rutted slopes; when that feedback is transmitted from the skis up to the bars it requires less effort to correct?

The downside of less caster is that you might lose a little straight-line, high-speed trail stability, but these are mountain sleds not trail sleds.
 

caper11

Well-known member
Nov 2, 2008
664
248
43
Northern alberta
Spindles are different. The black ones are the new expert spindle.
It does not look like you are holding the spindle correctly. The a arm holes look like they will line up when held correctly.

I don’t ever recall doo saying they had a different geometry, even when I talked to a ambassador at the sled show about them a month ago.
The prototypes may of had a different geometry, but doo is allowed and known to make changes.

The problem with the washout was the bushing in the ski.



Sent from my iPhone using Tapatalk
 

ThePennySaved

Member
Lifetime Membership
Nov 9, 2017
16
14
3
AK
It does not look like you are holding the spindle correctly. The a arm holes look like they will line up when held correctly.
@fugly27, will you take pictures of the Summit and Expert spindles with the a-arm holes lined up so we can see the relative position of the ski holes? Assuming you didn't finish the job and put the new spindle on the sled already ...

Or @ebnewbie, can you do that before you install?
 

caper11

Well-known member
Nov 2, 2008
664
248
43
Northern alberta
Hey all I know is when I look at the spindles they are definately different sorry that confuses everyone.
They have to be physically different, they are lighter. The question is on the geometry, I do not think that a ambassador would post wrong info on a product.
To me it looks like all of the mounting points line up when held correctly.

Your using the flat of the top ball joint mount to do the comparison, the ball joint pivots, what i’m interested in is the angle of the centerline of the mounting points.

Install one and see if the new spindle will push the ski more forward than the old spindle, im also wondering what MTN sled had a raw looking spindle anyway? 2017??? The 2019 spindle is different yet.
 
Last edited:
Premium Features