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Messages - GuitsBoy

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1
29+ & 27+ / Re: Carbon Speed 2017 27.5 plus FS frame CS-FS27
« on: February 12, 2018, 06:06:52 AM »
Mine came loose. If yours was loose this might have caused the failure.
If this was in response to my broken pivot bolt, it was not loose.  It was quite a challenge to remove the threads after the bolt broke off.  If anything I suspect that it was too tight, and it failed on a particularly cold day (single digits F).  But who knows if contraction played a role or not.  Ive since epoxied a short length of titanium tubing into  the ID to reinforce the bolt and hopefully prevent future failures.

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29+ & 27+ / Re: Carbon Speed 2017 27.5 plus FS frame CS-FS27
« on: December 06, 2017, 10:11:32 AM »
Thanks for the suggestion, but I dont see anything that would fit.  I was going to try to find a sex bolt with a 10mm OD sleeve, but those are hard to come by.

I wound up ordering a half meter length of 10mm OD 8mm ID Titanium tubing, which I should be able to press fit inside the new bolt.  I've done similar modification to rear hub axles, and it helped substantially.  Just one of the many perils of being a clyde cyclist.

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29+ & 27+ / Re: Carbon Speed 2017 27.5 plus FS frame CS-FS27
« on: December 03, 2017, 05:47:36 PM »
Managed to break the lower pivot bolt on my FS27 today.  Luckily this happened cranking out of a turn, and not on a landing or at high speed.  Heard a loud snap, and the cranks felt just a little bit wobbly for lack of a better term.  Pulled over to the side, and noticed the pivot bolt was spinning freely, and pulled right out, sheared just before the threads.

Emailed peter, waiting to hear back about sourcing a replacement or two.

EDIT:    Peter is sending me a warranty replacement.  I also purchased a spare to keep on hand for $16. 

Now, I'm a little hesitant about this particular piece.  I'm wondering what I could use to beef the part up just a bit.  Perhaps adding a steel tube press fit through the bolt?  Maybe a 10mm sex bolt?

4
29+ & 27+ / Re: CS-FS27 vs CS-FS29, same geometry?
« on: November 11, 2017, 06:46:25 AM »
Cant say for 100% certain, but I have a 140mm fork on the FS27 and love it.  Might even try 150 one day.  The 140mm 27.5 fork with plus tires probably gives similar height as the 130 29" fork.

You got some pictures of your build somewhere, or could you post some here? Cheers
I've been meaning to take some more recent pics, but here's an early one before I swapped out shocks, and moved to an eagle drivetrain.



EDIT:

I have attached a pic of how the bike sits now.  Sorry about the lame backdrop, seems every other photo op from this weekend was ruined by photobombers.

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29+ & 27+ / Re: CS-FS27 vs CS-FS29, same geometry?
« on: November 10, 2017, 02:13:02 PM »
Cant say for 100% certain, but I have a 140mm fork on the FS27 and love it.  Might even try 150 one day.  The 140mm 27.5 fork with plus tires probably gives similar height as the 130 29" fork.

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29+ & 27+ / Re: CS-FS27 vs CS-FS29, same geometry?
« on: November 09, 2017, 12:51:10 PM »
Just to give you the flip side of  the coin, doing away with the rear axle pivot both reduces weight and increases lateral stiffness of the rear triangle.   IMO this is more progressive than prehistoric.   Flexing seat stays are fine for lower travel, but certainly not ideal for longer travel, at least not without an obscenely high leverage ratio.  As for the bottom bracket, yeah, PF can be prone to creaking, however I've found relief with the wheels manufacturing threaded pressfit BB.  The mid tube is threaded, and forms a single solid BB tube, and has eliminated every hint of a creak from my cranks. Best 55 bucks Ive spent in a long time. 

Another issue with the FS27 and FS29 is that youre effectively limited to 100mm rear travel.  At least until someone finds a trunnion shock that will actually fit these bikes.

Anyway, after putting four or five hundred miles on my CS-FS27, you'd have a hard time convincing me to go in a different direction. 

7
29+ & 27+ / Re: Carbon Speed 2017 27.5 plus FS frame CS-FS27
« on: October 30, 2017, 09:57:52 AM »
You can get the McLeod at bike24 for 170$  shipped now.
  Thats a great price, but I'm showing 170 euro shipped, which is almost $200 USD.

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29+ & 27+ / Re: Carbon Speed 2017 27.5 plus FS frame CS-FS27
« on: October 22, 2017, 07:20:02 AM »
I'm running a 140mm fork and I love it.  But youre definitely going to need to run a 165mm shock.  No way around that.  I'm running a manitou mcleod shock.  Its a steal at $239 from take a hike bike shop.

Are you even noticing the 120mm rear travel?  Or can you tell its short on travel and would like more?  From reading about these newer geo shorter travel rear bikes, it sound like everyone says it feels like a 150 rear travel bike.  Curious to hear your thoughts on that.
Hard to say since this is my first full squish.  I would have to believe it is pretty noticeable, since the 38mm  travel equates to only 100mm travel in the back, not 120.  The travel and spring rates noticeably different, but some tweaking gets them as close as possible, IMO.  I'm running the shock at a little less pressure, with reduced volume to make the spring a bit more progressive.  I'm running 95 psi in the fork, and 190 in the rear.  Bumping it up to 200 feels a bit harsh.  190 still blows through nearly all  the travel, but I haven't felt it bottom out yet.  I'm running the compression at the second notch from open.  I have a tick over 300 miles on the setup so far, so Ill be able to further tune it as I get more used to it, but so far I love it.  Coming from a 140mm hardtail, the bike is certainly much more capable of plowing through chunk.  The few rock gardens and rooty sections we have around here are way easier to hold speed through.  But since I dont have anything to compare, its really hard to say.  I will say the bike climbs extremely well, and my climbs have actually improved over my hardtail times due to added traction.

9
29+ & 27+ / Re: Carbon Speed 2017 27.5 plus FS frame CS-FS27
« on: October 21, 2017, 07:11:07 AM »
I'm going to ask dvo to out a 45mm stroke on a eyelet opal when its released. Using offset bushing will take up 5mm of the extra 7mm the rest being 2mm taken up by suspension.
 I think it will work.
Just curious why you would attempt to take up stroke with an offset bushing when the frame supposedly can handle the full 45mm stroke?  The only trouble is finding 45mm stroke in a 165 eye to eye shock.  Once the trunnions come out, maybe we will have some luck.  But then we'll have to worry about the air fill fitment between the frames trunnion mount.

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29+ & 27+ / Re: Carbon Speed 2017 27.5 plus FS frame CS-FS27
« on: October 18, 2017, 02:43:36 PM »
I'm running a 140mm fork and I love it.  But youre definitely going to need to run a 165mm shock.  No way around that.  I'm running a manitou mcleod shock.  Its a steal at $239 from take a hike bike shop.

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29+ & 27+ / Re: Carbon Speed 2017 27.5 plus FS frame CS-FS27
« on: October 18, 2017, 01:44:00 PM »
Can anyone explain to me what will happen if I put a 184x44 shox on this, together with a 140mm fork?
Will it totaly ruin the geometry or what's gonna happen?
Only asking because I can get a new 184 shox for free..  :D
It quite simply wont fit. 

12
29+ & 27+ / Re: Carbon Speed 2017 27.5 plus FS frame CS-FS27
« on: September 25, 2017, 03:31:23 PM »
Bent my 8x50 lower shock bolt anyone no where to get one at. It would be nice if it is stronger then original.

I ordered one from china...   I ordered m6 x 62, but I haven't test fit it yet.  I think I ordered it just a touch big, since they didn't have exact length.  I figured I could grind it down if necessary.
http://www.ebay.com/itm/M6-%CE%A68-29-33-45-50-56-70-78mm-bike-bicycle-Shock-absorbers-Lock-Bolts-Screw-nut/201357021728?ssPageName=STRK%3AMEBIDX%3AIT&var=500573777539&_trksid=p2060353.m2749.l2649

Consider using this instead of the two spacers.  It should be much stronger.
https://365cycles.com/catalogsearch/result/?cat=0&q=RS1526

While you wait for the new bolt to come in, see if you can tap the old one back straight again.

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29+ & 27+ / Re: Carbon Speed 2017 27.5 plus FS frame CS-FS27
« on: September 22, 2017, 02:33:21 PM »
Since it looks like trunnion mounted stocks are not going to be an option any time soon, if at all....

Has anyone considered using an offset/eccentric shock mount bushing to effectively shorten the shock side leverage of the pivot by 2mm?  I'm still trying to work out the actual numbers, but some rough guestimation puts it right around 107 mm travel.  Dropping to 6x22 hardware would allow for 110mm travel.  Sure its not the full 120, but for relatively little money, it gets you half way there.

Any thoughts or concerns about trying this?

https://www.offsetbushings.com/collections/all/products/offset-bushing

EDIT:
I decided to pick up some 1/2" round aluminum bar stock from amazon for $5.  I'm going to drill and tap a hole, as offset as possible to maximize the increase in travel.  I think I can get a little closer to the edge by bolting right into it, rather than drilling with a larger hole for the normal 8mm hardware to go through.  Hope that makes sense.

Anyway, if I get bored one rainy day, Ill see if I can fabricate something up.  Or I may just decide its not worth the aggravation for a measly 7 to 10 mm extra travel.

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29+ & 27+ / Re: CS-FS27 Sizing
« on: September 12, 2017, 06:06:40 PM »
Just in case anybody needs to add an extra 1mm of clearance on a sram PF-GXP / BB92 like I did, I came up with a ghetto hack for it.  I found a keychain split ring that was 22mm ID.  I clipped one coil off, right before the bend, so it had a 5mm gap in the circle.  This allowed it to compress some, and sneak the spacer into the bottom bracket through the larger 24mm drive side bearing.  Once in there, you need to position it with your fingers so that when you insert the crank spindle in, the ring will go around the splines, right up to the step in the spindle.  Now when you snug the NDS side, which is what locates the spindle, its moved over about 1mm to  the drive side, thus creating one precious mm of extra space.

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29+ & 27+ / Re: CS-FS27 Sizing
« on: September 11, 2017, 03:11:39 PM »
Perhaps the comments above mentioning a 30t limit were referencing a non-boost chainring?   I'm using a non-boost (6mm offset) chainring on mine, and a 28T absoluteblack oval just brushed against the frame until I put a 1mm spacer on the drive side.  Unfortunately this squeezes the bottom bracket just a touch, resulting in increased drag, but its hard to justify spending 70 bucks without actually getting anything for it.  Anyway, I'm pretty confident a non-boost 30T oval or possibly a 32T round would almost certainly make contact even with the spacer.

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