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Search: Posts Made By: cpach
Showing results 1 to 50 of 165
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07-28-21, 10:01 AM
Replies: 9
Views: 227
Posted By cpach

The early disc road bikes were a shitshow of...

The early disc road bikes were a shitshow of standards. We have, in rough order of commonality:
135x9mm qr
142x12 ta
130x9 qr
135x12 ta
Specialized scs (weird 135x12mm ta, but slightly...
07-25-21, 09:52 AM
Replies: 9
Views: 356
Posted By cpach

The significantly higher bill from the bike shop...

The significantly higher bill from the bike shop was a communication problem on their part, but your bike probably needed it. It would not be inappropriate to say you at disappointed with their...
07-22-21, 11:04 PM
Replies: 27
Views: 537
Posted By cpach

The general theory is that a wider rim should...

The general theory is that a wider rim should have the same tire casing running wider and have a better ride feel. For what it's worth I find the ride quality of Gatorskins fairly poor--you'll get a...
06-25-21, 12:06 AM
Replies: 6
Views: 294
Posted By cpach

The overlong chain on the 11-25 will shift worse...

The overlong chain on the 11-25 will shift worse on it. Also that derailleur was really never intended to shift a road cassette and will, again, shift slightly worse. It's likely to be good enough...
06-20-21, 12:25 AM
Replies: 16
Views: 442
Posted By cpach

It'll probably work OK, but a wider rim would be...

It'll probably work OK, but a wider rim would be more ideal if you're already buying a new wheel.
Forum: Road Cycling
06-14-21, 12:09 AM
Replies: 129
Views: 4,196
Posted By cpach

If you don't care about being able to sprint in a...

If you don't care about being able to sprint in a group ride, paceline down a slight incline with a tailwind, etc, or just pedal downhill really really fast (so fast, in fact, that you'd probably be...
06-12-21, 10:53 PM
Replies: 50
Views: 1,577
Posted By cpach

I don't experience a ton of mechanicals typically...

I don't experience a ton of mechanicals typically so honestly my multi tool doesn't get a ton of use, but I had a Crankbrothers M19 that did my solid for many years. Now I have a Park IB-3 and I like...
06-06-21, 11:28 PM
Replies: 24
Views: 943
Posted By cpach

Honestly I'm very happy with Bondhus for almost...

Honestly I'm very happy with Bondhus for almost everything. I remember reading an article actually comparing measured tolerances and Bondhus beat out a lot of expensive tools marketed towards the...
05-17-21, 12:35 AM
Replies: 5
Views: 309
Posted By cpach

For what it's worth wtb rims are often available...

For what it's worth wtb rims are often available in wheelsets not built by wtb, and build quality has s significant impact on wheel longevity. My personal opinion is an i19 is okay for what it costs,...
05-14-21, 12:05 PM
Replies: 9
Views: 398
Posted By cpach

A helicoil would work but it's not worth the cost...

A helicoil would work but it's not worth the cost in this case unless sourcing parts ends up being difficult because pandemic. If you look on the back side of the left crankarm, there should be a...
05-14-21, 08:33 AM
Replies: 10
Views: 431
Posted By cpach

Yeah, sorry, missed the axle on that fulcrum...

Yeah, sorry, missed the axle on that fulcrum wheelset. What you want is a 135mm qr in the rear.

The original wheel died due to fatigue stress at the rim, possibly by excessive tension on that...
05-13-21, 10:54 PM
Replies: 10
Views: 431
Posted By cpach

To be honest, that wheel probably isn't worth a...

To be honest, that wheel probably isn't worth a ton and getting it relaced to a new rim probably doesn't make sense. If they were to relace it, the rim would have to have the same effective rim...
05-11-21, 01:12 PM
Replies: 24
Views: 1,167
Posted By cpach

I would recommend against this. The shop labor...

I would recommend against this. The shop labor costs to do this would probably eclipse the cost of the (kinda crappy) bike, and there are still major component shortages so it's possible your shop...
04-26-21, 11:52 PM
Replies: 15
Views: 780
Posted By cpach

The solution is leverage, not an impact driver.

The solution is leverage, not an impact driver.
04-25-21, 02:31 PM
Replies: 16
Views: 817
Posted By cpach

Bring it to a professional mechanic in the box....

Bring it to a professional mechanic in the box. Specifically mention you're concerned about wheel failure. Pay them appropriate money. Enjoy your bike.
04-25-21, 09:08 AM
Replies: 2
Views: 361
Posted By cpach

I'm pretty sure WTB states a 120kgf max for most...

I'm pretty sure WTB states a 120kgf max for most of their rims. Minimum is harder to state--when you deform a rim you are going to need to have uneven tension. Given this is a disc rim try to...
04-02-21, 12:55 AM
Replies: 34
Views: 1,473
Posted By cpach

The Ksyrium thing was mostly to bring the DS...

The Ksyrium thing was mostly to bring the DS flange out a little farther without hitting the cassette, particularly with the stupid zircal spokes. It relies on the hub shell to transmit torque....
03-30-21, 12:15 AM
Replies: 12
Views: 585
Posted By cpach

That looks fine. Chainrings are worn when: -The...

That looks fine. Chainrings are worn when:
-The chain skips or
-They shift poorly.

If neither is true, leave well enough alone.
03-29-21, 11:39 PM
Replies: 38
Views: 1,453
Posted By cpach

As a professional bike mechanic I friggin hate...

As a professional bike mechanic I friggin hate QRs with disc breaks. They are way less consistent in axle positioning and create disc rub. Also they are less stiff and create rub. They are also...
03-29-21, 11:28 PM
Replies: 34
Views: 1,473
Posted By cpach

Go for it if you want, it's fun and almost...

Go for it if you want, it's fun and almost entirely harmless. My personal road bike has a radial/2x 28h rear wheel, mostly because it looks neat and it was fun. It has held up fine, despite the very...
03-23-21, 12:23 AM
Replies: 7
Views: 366
Posted By cpach

TBH this sounds like a profoundly bad idea. A...

TBH this sounds like a profoundly bad idea. A failure to the head tube is really likely to result in a crash.

I know Covid has messed everything up, but are there any bike co-ops in your area that...
03-07-21, 01:03 AM
Replies: 4
Views: 408
Posted By cpach

Lower than optimal tensions increase the...

Lower than optimal tensions increase the probability of spoke failure, higher than optimal tension increase the probability of rim failure (at the spoke holes).

You should tension to the highest...
03-05-21, 08:43 PM
Replies: 90
Views: 3,757
Posted By cpach

Congrats, you found your area's actual bike shop....

Congrats, you found your area's actual bike shop.

I would not work somewhere without conmon cutting tools.
03-02-21, 01:04 AM
Replies: 9
Views: 346
Posted By cpach

Lacing pattern has a minimal effect on the wheel,...

Lacing pattern has a minimal effect on the wheel, to be honest. To reduce stresses on the hub flange it's good to get the spokes nearly tangential. 2x is the convention for a 28h rear wheel and...
02-17-21, 10:08 PM
Replies: 28
Views: 1,773
Posted By cpach

To be honest what you're going to feel between...

To be honest what you're going to feel between pretty much any 26" mountain bike and pretty much any 27.5/29" wheeled mountain bike is more due to pretty significant changes in geometry in more...
02-17-21, 03:04 AM
Replies: 8
Views: 581
Posted By cpach

Enduro has the best distribution to bike shops in...

Enduro has the best distribution to bike shops in the US and are fine quality. If you're chasing every last watt of efficiency or are obsessed with bearing life there are a few brands that typically...
02-17-21, 03:01 AM
Replies: 11
Views: 952
Posted By cpach

If you're swapping Shimano cranksets you do not...

If you're swapping Shimano cranksets you do not need to change anything about your bottom bracket for reasons of compatibility. If the bottom bracket feels absolutely, entirely fine with the crank...
02-09-21, 03:42 AM
Replies: 7
Views: 347
Posted By cpach

Don't do it. You really want to run a HG+...

Don't do it. You really want to run a HG+ compatible chainring. If you really must get a HG+ compatible ring from Wolftooth to match your existing crank.
02-09-21, 03:38 AM
Replies: 4
Views: 322
Posted By cpach

10 speed chain on 11 speed cassette super doesn't...

10 speed chain on 11 speed cassette super doesn't work--the spacing between cogs is smaller, and thus the chain is thinner. Doing so will skip over cogs.

Road/mountain thing is less cut and dry....
02-06-21, 11:18 PM
Replies: 30
Views: 1,095
Posted By cpach

I'm relatively sold on coil rear shocks for a lot...

I'm relatively sold on coil rear shocks for a lot of trail bikes. Shocks are driven by complex linkages that usually create a progressive leverage rate. On a fork the primary concern is that spring...
02-06-21, 11:03 PM
Replies: 5
Views: 395
Posted By cpach

Check out your existing wheels--10 speed freehubs...

Check out your existing wheels--10 speed freehubs have a shorter freehub body than 11 speed, so if your bike will accept an 11 speed cassette there should be an 1.8mm spacer behind the cassette, in...
01-29-21, 02:01 AM
Replies: 30
Views: 1,095
Posted By cpach

To be honest, I wouldn't buy a fork with the...

To be honest, I wouldn't buy a fork with the plans of replacing the spring unless you have an exceptionally good idea of what you're doing. I haven't done as much extensive work on Fox forks (damn...
01-29-21, 01:47 AM
Replies: 13
Views: 657
Posted By cpach

Part numbers are here:...

Part numbers are here: https://si.shimano.com/api/publish/storage/pdf/en/ev/RD-6600/EV-RD-6600-2358A.pdf .
There is a nearly zero percent chance you will find the parts. 6600 is like a decade old....
01-18-21, 12:56 AM
Replies: 24
Views: 1,300
Posted By cpach

If the spokes are legitimately too short and are...

If the spokes are legitimately too short and are putting the nipples in tension this should be considered a warranty issue. Ibis is in town for you, maybe they'd be down with you dropping it off to...
01-08-21, 01:04 AM
Replies: 10
Views: 799
Posted By cpach

From your tension graph it looks like you can...

From your tension graph it looks like you can probably even tension out more. It would be preferable to do this at less than final tension, but have you tried going through the wheel and evening the...
12-13-20, 12:33 AM
Replies: 18
Views: 1,352
Posted By cpach

Your experience is not normal; Deore brakes work...

Your experience is not normal; Deore brakes work very well. Did they use the same rotors? The new pads may have a different composition than the old, which will have bedded in some pad material onto...
11-13-20, 03:41 PM
Replies: 52
Views: 2,253
Posted By cpach

If you have all those wheel building tools,...

If you have all those wheel building tools, definitely just give rebuilding your rear wheel a try. You'll learn an enjoyable and useful skill, and it'll likely hold up to your needs. Again, I'd...
11-13-20, 02:25 AM
Replies: 52
Views: 2,253
Posted By cpach

It's potentially a little harder in w/ Covid and...

It's potentially a little harder in w/ Covid and the current bike boom, but really your wheelbuilder should determine lacing pattern etc. For what it's worth they would almost certainly keep it the...
11-09-20, 01:00 AM
Replies: 6
Views: 356
Posted By cpach

T...

T (https://bike.shimano.com/en-AU/product/component/sora-r3000/ST-R3030-L.html)he current generation of Sora, R3000, is still 9 speed, is cross compatible, and has under-wrap shift housing routing:...
10-17-20, 12:58 PM
Replies: 7
Views: 595
Posted By cpach

Those are relatively interchangeable among...

Those are relatively interchangeable among different Shimano models. It may be harder depending on how shops in your area are continuing to deal with Covid but probably most older shops should have a...
09-26-20, 12:47 AM
Replies: 51
Views: 2,372
Posted By cpach

The frame is likely made by a large manufacturer...

The frame is likely made by a large manufacturer that produces frames for us based, mainstream brands but I'm pretty sure that frame isn't produced by Giant (who build all of Trek's imported carbon...
09-02-20, 12:53 AM
Replies: 11
Views: 580
Posted By cpach

The HHP-2 is fast to operate and makes sense in a...

The HHP-2 is fast to operate and makes sense in a commercial setting. As long as the drifts are the right size you can save money using a simpler press (up to and including threaded rod with washers...
08-24-20, 01:40 AM
Replies: 20
Views: 1,840
Posted By cpach

The two pictures show completely different...

The two pictures show completely different cranks, the one being warrantied has a external bearing system and the one that is not warrantied is a square taper.

Basically the way the system works...
08-23-20, 10:26 PM
Replies: 12
Views: 592
Posted By cpach

To my knowledge (am a little behind on some...

To my knowledge (am a little behind on some Shimano training right now) all of the road Di2 systems need a D-Fly inline bluetooth adapter to use a bluetooth connection--most bikes don't ship with...
08-23-20, 01:44 AM
Replies: 12
Views: 592
Posted By cpach

If it's a recent (actually, at this point, just...

If it's a recent (actually, at this point, just not super old)version of Di2 with a charging port on the A junction box that uses a charging cable with a USB connection on the end, you can use your...
08-20-20, 08:26 PM
Replies: 10
Views: 569
Posted By cpach

Ryde Andra are really nice for heavy duty...

Ryde Andra are really nice for heavy duty touring. If it were me I would spend the extra for double butted spokes, at least on the NDS of the rear wheel. Butteds spokes have more than enough tensile...
08-20-20, 07:51 PM
Replies: 55
Views: 2,536
Posted By cpach

My favorite I've used is the Effetto Giustaforza...

My favorite I've used is the Effetto Giustaforza II torque wrench, which is 2-16 nm. This is my personal wrench which I use a lot. Goes around $170 for a wrench with bits:...
08-18-20, 09:40 AM
Replies: 4
Views: 564
Posted By cpach

The hub flange is where the spokes attach to the...

The hub flange is where the spokes attach to the hub—I've seen them crack and break. It's pretty obvious. The hub internals on your particular wheel are dt swiss star ratchet which is a very...
08-17-20, 03:53 PM
Replies: 4
Views: 564
Posted By cpach

I haven't worked at a Specialized dealer before...

I haven't worked at a Specialized dealer before so I'm not the most up to date on how their products wear, but it feels like I've seen a disproportionate amount of rim and hub flange failure on...
08-16-20, 07:55 PM
Replies: 7
Views: 449
Posted By cpach

According to the review at...

According to the review at https://sectionhiker.com/rei-adv-3-1-gravel-bike-review/ it has a SM-BB52 bottom bracket, which is for a threaded bottom bracket shell.

Looks like a nice bike.
Showing results 1 to 50 of 165
 


 
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