[biffhamilton]

Curious to know if anyone has tried running some offset rear shock bushings on there pre 2017 Scalpels?

I'm interested in making my 2014 Scalpel geometry a bit more slack. I've already flipped the fork spacer to the bottom...and like the result so far.

Looks like I could get another degree if I was to replace the Fox CTD stock bushings with some with an offset.

Thoughts or experiences??

 

[javtec]

Curious to know if anyone has tried running some offset rear shock bushings on there pre 2017 Scalpels?

I'm interested in making my 2014 Scalpel geometry a bit more slack. I've already flipped the fork spacer to the bottom...and like the result so far.

Looks like I could get another degree if I was to replace the Fox CTD stock bushings with some with an offset.

Thoughts or experiences??

I would give it a try, they are reso cheap. I looked into it when I had a scalpel but didn't change it before I sold it. You could buy one and see if you like half a degree or buy 2 and go the whole hog. Only thing I'm not sure of is how much the bb height changes. You may get a few more pedal strikes.

 

[biffhamilton]

I would give it a try, they are reso cheap. I looked into it when I had a scalpel but didn't change it before I sold it. You could buy one and see if you like half a degree or buy 2 and go the whole hog. Only thing I'm not sure of is how much the bb height changes. You may get a few more pedal strikes.

Thanks for the info. They are cheap enough. I guess I'll just order a set and try them out. I guess I'm a little jealous of what I've read on the 2017 revamped geometry.

 

[eam611]

i did put an offset bushing to my 2013 scalpel. Also installed the headtube spacer from top to the bottom part of the steerer tube.


bushing installed(both holes) to my old rockshox


level floor. poor picture.


angle after install(90-20.7 =69.3)


slacker HT angle, lower BB. that's the immediate effect of it. No rear tire rubbing against the seat tube. Do i feel any difference? any advantage? I have not been riding really aggressive lately compare to when i have not done any "HT slack-hack" to the bike so cannot comment on that yet. And if they are right about the advantage of a 69deg HT, I have a reason not to buy a new bikeyet. not just yet.

 

[biffhamilton]

Interesting...thanks for the info!

I'm surprised that you're able to put a bushing on both ends though. It doesn't look like I have much space for an offset bushing on the back end

 

[xluossa]

This is intresting! How much it will lower BB?

 

[eam611]

This is intresting! How much it will lower BB?

I didnt do an actual measurement of the BB after install. But the website said that if its a par of bushings on 8mm shock bolt, it supposed to be 10mm lower.

 

[Markmtbwales]

Any updates on how it rides now?
How close is the rear tyre to the seat tube on full rear compression ?

 

[biffhamilton]

I've ordered one of the 6mm (0.75 degrees) bushings for the front mount. (Fox CTD) I didn't bother with one for the rear. Pretty sure only a 10mm will fit. (0.25 degrees) Not worth it IMO.

The bushing in addition to flipping the spacer from the top to the bottom should improve on slacking the bike out a bit. Not sure if I'll even notice though.....whatever

 

[Markmtbwales]

Hasn't the scalpel got 8mm diameter holes in the bushes at both ends?

 

[biffhamilton]

I was of the understanding that the stock bushing holes are centered (no offset)

6mm diameter - 3mm offset each, ~ 0.75° head angle adjustment.
8mm diameter - 2mm offset each, ~ 0.5° head angle adjustment.
10mm diameter - 1mm offset each, ~ 0.25° head angle adjustment.

A 3mm offset looks like it might be too tight

 

[Markmtbwales]

Yes the stock bushes have no offset obviously
But you have to buy bushes that suit the size (diameter) of your mounting bolts
So the scalpel has 8mm bolts both ends so you can only fit those bushes
You can't fit 6 or 10 mm bushes.

 

[biffhamilton]

Yea....my bad......I just checked on my order.

They shipped the 8mm which will produce a 2mm offset.

I'll have to see if it will fit on the back of the shock. Looks pretty tight. If it will clear safely, I'll order another one

 

[eam611]

With Fully compressed rear shock, there is still a good half inch clearance between the tire(29x2.35) and the seat tube.

 

[biffhamilton]

With Fully compressed rear shock, there is still a good half inch clearance between the tire(29x2.35) and the seat tube.

It's not the seat tube clearance I was worried about. I was more worried about moving the shock back two millimeters and hitting the linkage.

 

[eam611]

It has been posted before.. but here is the picture of the rear part of the shock with offset bushing installed. Safe distance With linkage.

 

[biffhamilton]

What shock is that? I have the Fox CTD...and I have less clearance than that with the stock bushing.

 

[eam611]

Monarch RT3

 

[Markmtbwales]

Just to throw another option into the mix, the lefty 29 pbr & xlr can go out to 110mm travel
More tuning potential, going to look which way the travel is increased if it's longer in de compressed or compressed length as one of them will affect the head angle

 

[biffhamilton]

I cut my air piston by 10mm on my pbr90 that came with my f29 when I received a warranty replacement upgrade to the scalpel. Are you saying you can cut 20mm off the air piston to increase to the 110?