Ask the experts

[goldenboy]

I'm sure this has been asked, but..

I have a road bike that I pretty much never use, because, you know, road biking, but I'm in surgery recovery mode right now. For now the bike is on a trainer, and the tires look fine but they sure don't feel pliable. I'm thinking they're close to 15 years old. Ditch them before I actually take that thing on the road?

[sfotex]

I'm sure this has been asked, but..

I have a road bike that I pretty much never use, because, you know, road biking, but I'm in surgery recovery mode right now. For now the bike is on a trainer, and the tires look fine but they sure don't feel pliable. I'm thinking they're close to 15 years old. Ditch them before I actually take that thing on the road?

I would swap them out, they might be ok to ride to the bar, but it sounds like they are starting to degrade, and at best you get a flat a few block from home, at worst they give out when your in the middle of traffic...

[frorider]

I’ve had the bontrager flash charger for many years…since it first hit the market. Very reliable. Once I got it I mostly stopped using my compressor. I wrench inside my small 2 car garage, and the noise from my compressor vs the quick n silent Charger is an easy call.

However I weigh 185; a friend (she’s maybe 120?) couldn’t easily get the charger chamber psi into the green zone.

It’s definitely nice on road trips.

[wendigo]

what i got:

cranks: raceface aeffect
chainring: 36t narrow/wide cinch
bb: 73mm
chain: sram pc-1170
casette: sram xg1150 10-42 11sp
rd: sram rival 1

what i want:
put on a front derailleur for something like a 52/36 or 34 - basically change this gravel bike ('19 kona sutra ltd) to a gravel & road bike, the geometry works for her for long rides, not racing but 1x leaves something to be desired when out for a 50+ mile road ride.
have different tires etc, but would like more road worthy gearing and i would prefer to not have to change out the whole drivetrain every time we go on a bike packing tour

good god the matrices of which 'standards' work together is a nightmare. any reasonable way to do this?

[east or bust]

Leak or bird shit?



Brake feels fine

[toast2266]

Leak or bird shit?



Brake feels fine

That doesn't really look like a leak to me.

Sent from my SM-S901U using Tapatalk

[singlesline]

what i got:

cranks: raceface aeffect
chainring: 36t narrow/wide cinch
bb: 73mm
chain: sram pc-1170
casette: sram xg1150 10-42 11sp
rd: sram rival 1

what i want:
put on a front derailleur for something like a 52/36 or 34 - basically change this gravel bike ('19 kona sutra ltd) to a gravel & road bike, the geometry works for her for long rides, not racing but 1x leaves something to be desired when out for a 50+ mile road ride.
have different tires etc, but would like more road worthy gearing and i would prefer to not have to change out the whole drivetrain every time we go on a bike packing tour

good god the matrices of which 'standards' work together is a nightmare. any reasonable way to do this?

Do you need that much of a low gear? 1:1ish is usually a pretty manageable low gear for most gravel.

If the issue is lack of top end, you could go to something like a 40 or 42T chainring and keep a 1:1 and gain more speed on the rest of the cogs. Still able to spin it out on downhills, but for most non super-humans, 42-10 is enough gear if you're not racing or sprinting for strava times. Could also just swap chainrings and chain which is easier than swapping the whole drivetrain for trips (can even just use a quick link and a couple of spare links to add length).

If it is spacing, you could go to a 10-36 cassette and gain a little tighter spacing while keeping a 1:1...but that's roughly where my bike is now (11-36 with a 34T and I agree that it comes up lacking on the road)

Otherwise just buy a whole 2x group because everything has to go. You could reuse the right shifter and chain, but the rest of the bits are all 1x only. I think I saw some people posting some really good deals on 2x GRX groups and you'll probably be able to flip a Rival 1 group.

[rideit]

1:1 for gravel? Around here 32/40 is barely comfortable on a bunch of climbs, forget about loaded.

[wendigo]

yeah need the low, not really a gravel bike so much as a loaded gravel touring bike, and she would put a 60 tooth sprocket in there if it would fit. prefers to spin.
she has a problem getting bikes to fit, so i'm thinking it will be easier to make a do it all 2x gearing than find a road frame that will really only be used for exercise/training, so trying to figure out what will work

[bean]

I'm sure this has been asked, but..

I have a road bike that I pretty much never use, because, you know, road biking, but I'm in surgery recovery mode right now. For now the bike is on a trainer, and the tires look fine but they sure don't feel pliable. I'm thinking they're close to 15 years old. Ditch them before I actually take that thing on the road?

Get new tires before you go outside with it. Not worth risking something bad happening especially when you’re recovering.

If you’re going to be spending much time on the trainer look into an inexpensive direct drive. It’s a much more enjoyable experience. Hard to beat for rehab.

[Dumbest Known Time]

Picked up a used Push ElevenSix on a screaming deal this week. It came off the same bike that its going on but the original owner was significantly heavier than me. Can I just throw an appropriate coil on there, adjust the settings and ride off into the sunset? Push suggested sending it back in for a rebuild since the rider weights are different by about 40-50lbs. Never had a dentist shock and I'm wondering if I can just put off the rebuild until this fall.

[toast2266]

^^^ ride it and see how it feels?

I'm sure it'd be nominally better if they re-tuned it, but I doubt it'd be a massively noticeable change. Personally, I wouldn't spend the money on it unless I rode it and felt like there was some aspect of the time that was specifically lacking.

Sent from my SM-S901U using Tapatalk

[SchralphMacchio]

SRAM RS Experts - does RS offer an “extra light” compression tune on the SDU?

I’m curious because people always say that Juliana Roubions are optimized for lighter riders than SC Bronsons. But the stock SDU tune on a Bronson is “linear rebound light compression.” I’m curious if RS still actually has a different tuned shock for Roubions. We’d be getting my wife a medium frame and we are deciding between the SC and Juliana branded version. I think my wife is around 160 lbs these days.

[Andeh]

Looks like there are 3 different light tunes here:
https://www.sram.com/globalassets/do...ning-guide.pdf
page 67

I'm not a tuner, so no idea how much lighter LC is than the typical L.

[SchralphMacchio]

Looks like there are 3 different light tunes here:
https://www.sram.com/globalassets/do...ning-guide.pdf
page 67

I'm not a tuner, so no idea how much lighter LC is than the typical L.

Awesome! My shop got an immediate response from their SC rep, Bronson has an L compression tune and Roubion has L1, which appears from the manual you posted to add an additional ID 9 / OD 11 washer to the stack. I’ll have to ask around to see what the practical difference in ride feel would be!
Anyone who does their own damper tuning want to care to chime in? We are talking about a non aggressive rider going down extended singletrack descents that are not chunky but have a lot of compressions and jumps at moderately fast trail speeds.

[SchralphMacchio]

Whoops, wrong page, I was looking at B2 vs current C1 generation.

Looks like the L1 compressiontune of the Roubion has slightly smaller ODs on the two out of three washers.

[funkendrenchman]

Thoughts on this used bike with carbon repair?

https://www.pinkbike.com/buysell/3864895/

[XXX-er]

He's not concerned but I would be, I might get a CF frame fixed but I can't see why anyone would buy a repaired CF frame on purpose ?

Especialy when the bike market is in the tank ?

[J. Barron DeJong]

Thoughts on this used bike with carbon repair?

https://www.pinkbike.com/buysell/3864895/

I’d want to see before pics, and to know who did the repair.

[toast2266]

Thoughts on this used bike with carbon repair?

https://www.pinkbike.com/buysell/3864895/

I'd be willing to buy it, but the price I'd pay would only be slightly over the value of the parts. The frame is essentially worthless. The location of the repair makes me think it probably got damaged in a crash. It's not a super critical area (i.e. if it breaks, you're probably not gonna die), so I'd ride it. Finding out more info about the repair would be nice, but the ad makes it sound like the repair was from a prior owner, so you might not be able to get much info.

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[jm2e]

Don't they still have lifetime warranty on frames? Odd choice to address the situation.
Repairing a carbon frame is an labor of love for something you intend to keep.

[XXX-er]

I’d want to see before pics, and to know who did the repair.

It probably got laid down which is what did the damage but thats the thing, you got no idea whats under that ow-ee

I think self inflicted damage might not be covered ??

[Roxtar]

Agree with most of the comments above.
My main thing is it's priced at the high end of where it should be without that issue.

[XXX-er]

I would venture that buddy is not gona get too many offers on an overpriced used bike with a big wrap of CF glued to it

SO its already been said offer to buy it for what the parts are worth and move on, maybe he comes back to you when it doesnt sell

[LeeLau]

Don't they still have lifetime warranty on frames? Odd choice to address the situation.
Repairing a carbon frame is an labor of love for something you intend to keep.

At least in Canada lifetime warranty is to the original owner.

To give you a market price I bought a S4 Enduro SWorks with Fox 38 and new GX drivetrain, new Codes for $4k Cad which is approx 3200USD. The frame was also new and the shop from where it was bought transferred the warranty to me even though I was technically 2d owner.

TLDR that price is high for a repaired carbon frame.. nice bike though