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Old 03-04-19, 09:05 AM
  #726  
quicktrigger
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Originally Posted by GeorgeMD View Post
Yea I made a big mistake, I got herniated lower back and Yakima has a 20 lb extra lite model. When I added hitch to my car and bought it, it was important I could mount it on my own.
Its a miserable SOB in that the straps are impossible to get on, so I use those twistie Tie things you can get at home depot. Ive decided to sell it now.
At 400-600$ a rack, I think buying a used minivan might be better haha, but seriously this is my first really expensive bike so I want to keep this one fresh.

Im headed to a store that has them in stock, I need to see the Purple Xcomp in person, it looks black to me in all the pictures.
After I see it, I am ordering! (from preferred LBS)
FWIW, if you are in the US, Rocky Mounts Monorail hitch mounted tray style bike rack that I'm really loving. Takes less than a minute to load or unload a bike, and they are securely held in place if loaded properly with NO RUB on the frame. I bought it to carry my carbon mountain bike, but it works equally well with my carbon road bike, and steel gravel bike.
It's highly recommended that for carbon bikes that tray style racks be used and not the bike hanging style. Carbon bike frames are not uniformly strong, in the case meaning the frames aren't designed to support weight from the underside of the top tube and so will typically be very thin walled there, where as carbon frames are design to support weight from above with the force transmitted through the wheels.
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Old 03-04-19, 09:44 PM
  #727  
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Originally Posted by GeorgeMD View Post
Yea I made a big mistake, I got herniated lower back and Yakima has a 20 lb extra lite model. When I added hitch to my car and bought it, it was important I could mount it on my own.
Its a miserable SOB in that the straps are impossible to get on, so I use those twistie Tie things you can get at home depot. Ive decided to sell it now.
At 400-600$ a rack, I think buying a used minivan might be better haha, but seriously this is my first really expensive bike so I want to keep this one fresh.

Im headed to a store that has them in stock, I need to see the Purple Xcomp in person, it looks black to me in all the pictures.
After I see it, I am ordering! (from preferred LBS)
I have a Yakama hitch rack that holds 4 bikes, frame hanging style with extra tie straps below for the wheels that add additional stability while also keeping the wheels from spinning. My impression is that it is stable and easy on even a carbon frame, It is about 20 years old. I'll take a picture and add it when I get a chance. I'd like to compare it it GeorgeMD's model. I don't see the risk but want to be sure with our two new carbon frame bikes. I also have a roof bike rack that hold the bike from the wheels. I've never used or installed it. I could put that on and put a second bike inside the Landcruiser if needed.

Last edited by Midway; 03-04-19 at 10:13 PM.
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Old 03-05-19, 03:33 PM
  #728  
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Originally Posted by Midway View Post
I have a Yakama hitch rack that holds 4 bikes, frame hanging style with extra tie straps below for the wheels that add additional stability while also keeping the wheels from spinning. My impression is that it is stable and easy on even a carbon frame, It is about 20 years old. I'll take a picture and add it when I get a chance. I'd like to compare it it GeorgeMD's model. I don't see the risk but want to be sure with our two new carbon frame bikes. I also have a roof bike rack that hold the bike from the wheels. I've never used or installed it. I could put that on and put a second bike inside the Landcruiser if needed.
Yakima Rack Pictures; why and how would this be hard on carbon frames?



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Old 03-06-19, 12:39 AM
  #729  
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Originally Posted by Midway View Post
Yakima Rack Pictures; why and how would this be hard on carbon frames?
Compared to metallic frame materials, carbon frames are much less tolerant of the type of loads applied by a rack. (Thin wall alum doesn't do well either.) Carbon frames are strong with respect to the normal stresses of riding, but weak with respect to the odd localized loads exerted by the attachment points of a rack and clamping. This is the reason virtually all mfgs of carbon frames strongly advise against using any sort of rack that clamps to the frame tubes. It's also the reason you should never clamp a carbon frame in a bike repair stand.

I'm sure many carbon frames are put in racks and survive (being gentle with clamps and spreading the load with padding helps a lot) but it's just not a good idea. The frame in a rack needs to see the same sort of loads it sees while riding - through the wheels, the dropouts, etc.

- Mark
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Old 03-06-19, 10:25 AM
  #730  
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Originally Posted by Midway View Post
Yakima Rack Pictures; why and how would this be hard on carbon frames?
Those straps and tray will rub the paint off the top tube from shaking around during transport.

Again...tray racks are better. Bike is supported by wheels and clamping is done on the wheels.
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Old 03-12-19, 02:16 PM
  #731  
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Just a quick note on a couple minor problems withy my 2019 Carbon Comp X. I took it in for it's 30-day new-bike tuneup at the LBS and asked that they look at an annoying light rattling noise in the area of the steering-head/Future-Shock. The mechanic noticed that the Future-Shock cover (the plastic cover that turns with the handlebars) didn't fit tightly and later diagnosed that the problem was that they had fit the wrong part at the factory. The proper cover fixed the issue. The mechanic also noted that my bottom bracket bearings weren't turning smoothly so they put a new Shimano BB on the bike. (Nice that these new Sirrus models have a standard threaded BSA BB that takes an everyday Hollowtech II rather than some fancy press-in model.)

Anyway, if you have a a new Sirrus with the Future-Shock and notice a rattling in the front end, you know here to look.

The bike is building miles quickly. Really enjoy riding it.

- Mark
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Old 03-13-19, 07:44 AM
  #732  
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Originally Posted by markjenn View Post
Just a quick note on a couple minor problems withy my 2019 Carbon Comp X. I took it in for it's 30-day new-bike tuneup at the LBS and asked that they look at an annoying light rattling noise in the area of the steering-head/Future-Shock. The mechanic noticed that the Future-Shock cover (the plastic cover that turns with the handlebars) didn't fit tightly and later diagnosed that the problem was that they had fit the wrong part at the factory. The proper cover fixed the issue. The mechanic also noted that my bottom bracket bearings weren't turning smoothly so they put a new Shimano BB on the bike. (Nice that these new Sirrus models have a standard threaded BSA BB that takes an everyday Hollowtech II rather than some fancy press-in model.)

Anyway, if you have a a new Sirrus with the Future-Shock and notice a rattling in the front end, you know here to look.

The bike is building miles quickly. Really enjoy riding it.

- Mark

Have you done much gravel riding with it?
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Old 03-15-19, 12:12 AM
  #733  
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Originally Posted by prj71 View Post
Have you done much gravel riding with it?
Lots of gravel urban trails. Fantastic bike for that sort of riding.... plenty of tire, upright seating, comfortable, nice ride with the Futureshock, reasonable weight. The only thing Iím not ecstatic about is the handlebar but that is easily changeable.

- Mark
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Old 03-19-19, 03:24 PM
  #734  
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Originally Posted by markjenn View Post
Just a quick note on a couple minor problems withy my 2019 Carbon Comp X. I took it in for it's 30-day new-bike tuneup at the LBS and asked that they look at an annoying light rattling noise in the area of the steering-head/Future-Shock. The mechanic noticed that the Future-Shock cover (the plastic cover that turns with the handlebars) didn't fit tightly and later diagnosed that the problem was that they had fit the wrong part at the factory. The proper cover fixed the issue. The mechanic also noted that my bottom bracket bearings weren't turning smoothly so they put a new Shimano BB on the bike. (Nice that these new Sirrus models have a standard threaded BSA BB that takes an everyday Hollowtech II rather than some fancy press-in model.)
Anyway, if you have a a new Sirrus with the Future-Shock and notice a rattling in the front end, you know here to look.
- Mark
Mark, thanks for earlier emailing me closeup of your paint, I ordered the Purple and should see it this Friday.
Thanks for the info you just shared, I will share this with my 1-man LBS, he is expecting the recall repair part to ship with the bike.
Curious, did your LBS cover that Shimano BB, if not how much? Is it of significant better quality, if so I might just put it in now, I remember the BSA BB was something that caught my eye on this model months ago.

(OT: I also bought a Roll compX1 as a "beater" companion bike to my Sirrus, having fun riding that today)
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Old 03-19-19, 04:21 PM
  #735  
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Originally Posted by GeorgeMD View Post
Mark, thanks for earlier emailing me closeup of your paint, I ordered the Purple and should see it this Friday.
Thanks for the info you just shared, I will share this with my 1-man LBS, he is expecting the recall repair part to ship with the bike.
Curious, did your LBS cover that Shimano BB, if not how much? Is it of significant better quality, if so I might just put it in now, I remember the BSA BB was something that caught my eye on this model months ago.

(OT: I also bought a Roll compX1 as a "beater" companion bike to my Sirrus, having fun riding that today)
Far as I know, your bike should actually ship with the new FS collar installed. I have the same bike on order; lbs tells me that all FS bikes shipped since mid-January have the 'fix' in place. If not, my lbs has a bag of them in stock.

BTW, I'm planning the same thing re. b/b: when my bike (finally) arrives, I'm having a Shimano b/b (9100) installed before I take it out the door, and brake rotors upp'd to Shimano Ice Tech (XT).
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Old 03-19-19, 05:24 PM
  #736  
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Originally Posted by markjenn View Post
Compared to metallic frame materials, carbon frames are much less tolerant of the type of loads applied by a rack. (Thin wall alum doesn't do well either.) Carbon frames are strong with respect to the normal stresses of riding, but weak with respect to the odd localized loads exerted by the attachment points of a rack and clamping. This is the reason virtually all mfgs of carbon frames strongly advise against using any sort of rack that clamps to the frame tubes. It's also the reason you should never clamp a carbon frame in a bike repair stand.
I'm sure many carbon frames are put in racks and survive (being gentle with clamps and spreading the load with padding helps a lot) but it's just not a good idea. The frame in a rack needs to see the same sort of loads it sees while riding - through the wheels, the dropouts, etc.
- Mark
Wow Mark, THANKS for that info. First you just saved me 150$, I was going to get a repair stand, I had no idea they are not allowed in repair stands.
I hope this is common knowledge and my LBS doesnt look at me sideways when I ask him not to build my bike using a repair stand.
So glad I joined up in this community!

Midway I am going to sell my rack, mine, only a few years old, has the same miserable rubber straps as yours.
Im selling it and hope my Uhaul installed tow hitch doesn't cause any problems to my 2014 civic, and speaking of that car, it has big area after rear fold down, just have to release the wheel
I also have an Audi A4 wagon (2002) and a GMC Sierra truck available to borrow at any time. At least it will fit inside your Land Cruiser.
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Old 03-19-19, 06:21 PM
  #737  
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Originally Posted by GeorgeMD View Post
Wow Mark, THANKS for that info. First you just saved me 150$, I was going to get a repair stand, I had no idea they are not allowed in repair stands.
I hope this is common knowledge and my LBS doesnt look at me sideways when I ask him not to build my bike using a repair stand.
So glad I joined up in this community!

Midway I am going to sell my rack, mine, only a few years old, has the same miserable rubber straps as yours.
Im selling it and hope my Uhaul installed tow hitch doesn't cause any problems to my 2014 civic, and speaking of that car, it has big area after rear fold down, just have to release the wheel
I also have an Audi A4 wagon (2002) and a GMC Sierra truck available to borrow at any time. At least it will fit inside your Land Cruiser.
Every LBS uses a stand to work on carbon bikes. Just clamp to the seat post and youíre fine. Just donít clamp a frame tube.
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Old 03-19-19, 07:17 PM
  #738  
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Originally Posted by csrpenfab View Post


Every LBS uses a stand to work on carbon bikes. Just clamp to the seat post and you’re fine. Just don’t clamp a frame tube.
Pretty much this. It was standard practice even before crabon to never clamp a frame tube, especially a top tube as thin steel and Al dent easily. There is a wedged expandable seatpost insert that is used when the seatpost is removed.

There are also special racks. This one uses rubber donuts and straps (long gone) to secure the frame:

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Old 03-19-19, 10:12 PM
  #739  
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Originally Posted by GeorgeMD View Post
Curious, did your LBS cover that Shimano BB, if not how much? Is it of significant better quality, if so I might just put it in now, I remember the BSA BB was something that caught my eye on this model months ago.
No charge on the BB changeover (as I expected). I have no idea of the make/model of the original, but the replacement is a Shimano BB-RS500 which is low-end on the Shimano BB pecking order, although I'm sure it is completely serviceable and probably as good or better than what was in there originally. It's silver rather than black, but I don't care.

- Mark
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Old 03-20-19, 05:58 AM
  #740  
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Originally Posted by csrpenfab View Post


Every LBS uses a stand to work on carbon bikes. Just clamp to the seat post and youíre fine. Just donít clamp a frame tube.
I clamp my carbon fat bike and carbon road bike in the bike stand on the top tube. Never had any problems. I'm not sure if this advice applies anymore to today's newer carbon frames.

I do clamp lightly though.
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Old 03-20-19, 06:28 AM
  #741  
MarkEmondaSL7
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Proud owner of 2018 Sirrus Sport - disc brakes ; carbon forks.flat blue color..I'll add photo after reaching my 10 posts..
Rode the non-carbon forked model back to back in LBS parking lot and there was a noticeable difference in how much the
carbon front end could absorb....I'm 6'FT with 32" inseam and chose the XL frame over L...
Shifting is smooth enough and seat works for my short commute. Thinking about a rack and pannier .... any models work best on this
frame?
RE: bike stand issue- I use a Park PC-9 and hook my bikes up on their seat post...FWIW...
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Old 03-20-19, 12:50 PM
  #742  
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Anybody know what make/model crankset is on the X Comp Carbon? It has no obvious markings and doesn't look like any SRAM or Shimano model I can find. Specialized's specs simply say "Forged aluminum, 2-piece, 24mm spindle, direct-mount chainring". I'm curious as there seem to be multiple standards for direct-mount chainrings. The LBS mechanic who changed out my BB said it felt very stout but also fairly heavy. Probably an area where Specialized went cheap to hit their price point.

- Mark

Last edited by markjenn; 03-20-19 at 12:53 PM.
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Old 03-22-19, 11:19 AM
  #743  
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Hi everyone! I've got a question that's hopefully quick:

Are there paint codes for the colors that Specialized has done? I have a few chips in our bikes I'd like to take care of.

Thanks!
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Old 03-23-19, 05:51 AM
  #744  
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Originally Posted by markjenn View Post
Anybody know what make/model crankset is on the X Comp Carbon? It has no obvious markings and doesn't look like any SRAM or Shimano model I can find. Specialized's specs simply say "Forged aluminum, 2-piece, 24mm spindle, direct-mount chainring". I'm curious as there seem to be multiple standards for direct-mount chainrings. The LBS mechanic who changed out my BB said it felt very stout but also fairly heavy. Probably an area where Specialized went cheap to hit their price point.

- Mark
Specialized has been known to use Samox Cranks.

SAMOX
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Old 03-24-19, 08:13 PM
  #745  
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Originally Posted by prj71 View Post
Specialized has been known to use Samox Cranks.

SAMOX
An image search doesn't turn up any Samox crank that looks exactly the same as my Sirrus one, but many have a similar style so I bet you're right. Thanks.

- Mark
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