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Search: Posts Made By: dabac
Showing results 1 to 50 of 71
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09-20-20, 10:03 AM
Replies: 5
Views: 163
Posted By dabac

Shimano use different actuation ratios for their...

Shimano use different actuation ratios for their road vs MTB front derailers.
Don’t know of any easy way to get it to match.
09-14-20, 02:12 PM
Replies: 15
Views: 305
Posted By dabac

I’m wary of screw extractors. They’re quite...

I’m wary of screw extractors. They’re quite brittle and if they snap before the screw comes out your trouble has immediately multiplied.
I’ve never snapped a Torx yet.
Case like this, I’d be about...
09-14-20, 12:47 AM
Replies: 21
Views: 540
Posted By dabac

I’m not sure that’s a cassette. It looks to me...

I’m not sure that’s a cassette.
It looks to me like you’ve made yourself a freewheel puller. Freewheels tighten by pedalling action and can be on wickedly tight.
A very common method is to stick...
08-23-20, 12:01 AM
Replies: 12
Views: 411
Posted By dabac

not significantly more than hitting the chainstay...

not significantly more than hitting the chainstay itself.
Forum: Commuting
08-22-20, 11:15 PM
Replies: 29
Views: 1,898
Posted By dabac

WRT chain, a good front fender - and a good mud...

WRT chain, a good front fender - and a good mud flap - is more important than a rear. It should come down close to the ground. That keeps the rooster tail of road grime drawn up from the front wheel...
08-13-20, 03:55 AM
Replies: 28
Views: 807
Posted By dabac

There’s no set answer to that. Ebikes come in...

There’s no set answer to that. Ebikes come in several varieties, and gets ridden in different manners.
My ebike requires me to pedal for the motor to engage, and the motor cuts out at 25 kmh.
And...
08-12-20, 02:00 PM
Replies: 52
Views: 2,471
Posted By dabac

I don’t do ”winter cycling”. I merely commute...

I don’t do ”winter cycling”.
I merely commute year round where winter is a season to be noticed.
08-11-20, 10:48 PM
Replies: 6
Views: 308
Posted By dabac

Cranksets usually have the names on them. Exact...

Cranksets usually have the names on them. Exact number may be on the inside of the crank arm.
Cassettes may carry a small sticker, also on the inside. May not be visible with the cassette on the...
08-01-20, 01:28 PM
Replies: 5
Views: 246
Posted By dabac

If the spokes are exiting the nipple at an...

If the spokes are exiting the nipple at an obvious angle, there is a risk that they’ll start breaking there from fatigue.
07-15-20, 06:35 AM
Replies: 18
Views: 498
Posted By dabac

I am sorely tempted to suggest that as a course...

I am sorely tempted to suggest that as a course of action.
If it’d been my time and my money, I’d have done it w/o a second thought.
07-15-20, 06:02 AM
Replies: 18
Views: 498
Posted By dabac

https://www.ebay.de/itm/SHIMANO-Ritzel-NEXUS-CS-C7...

https://www.ebay.de/itm/SHIMANO-Ritzel-NEXUS-CS-C7000-SG-C7000-SG-C7050-5-27Z-NEXUS-Fahrrad/193495900951?hash=item2d0d412317:g:1WYAAOSws9Ze14Si
I’ve got others, but this is the design.
07-02-20, 05:42 AM
Replies: 1
Views: 411
Posted By dabac

If you look at the rear of the shoe you see a...

If you look at the rear of the shoe you see a small Allen head screw. That suggests to me that you have inserts, not one-piece shoes.

Most likely


The calipers would most likely fit...
07-02-20, 12:15 AM
Replies: 11
Views: 427
Posted By dabac

First you do a net search for ”spoke length...

First you do a net search for ”spoke length calculator”.
With a bit of luck, you might find one that already have your hub and rim in its database.
If not, you need to feed it some numbers.
The...
06-29-20, 02:46 PM
Replies: 76
Views: 4,167
Posted By dabac

Best I can remember, some bicycle-specific tools...

Best I can remember, some bicycle-specific tools in order of procurement:
- wrench for threaded headsets
- Shimano-style freewheel puller
- crank puller
- spoke nipple key
- cone wrenches
-...
06-10-20, 11:31 PM
Replies: 21
Views: 615
Posted By dabac

That’s the Kona Rove DL you’ve posted about...

That’s the Kona Rove DL you’ve posted about earlier?
A quick pic search shows a disc brake bike with a regular q/r hub.
Due to the bike industries unfortunate decision to put the brake caliper on...
06-09-20, 12:50 AM
Replies: 30
Views: 905
Posted By dabac

Ever taken a bug to the cornea at 25 mph? Or a...

Ever taken a bug to the cornea at 25 mph?
Or a piece of whatever flung up by the tires?
After a few of those events, I prefer to ride with glasses.
06-08-20, 11:45 PM
Replies: 6
Views: 368
Posted By dabac

You have what’s called a threadless...

You have what’s called a threadless stem/fork/headset.
Tools, should be enough with 4mm/5mm Allen.
However, these setups usually don’t allow for an adjustment of ”a couple inches”. You will need to...
06-08-20, 03:21 PM
Replies: 13
Views: 1,281
Posted By dabac

You were slow b/c you accidentally ended up over...

You were slow b/c you accidentally ended up over your heads.
Another rider might have been slower still, on account of having crashed out. Anytime you go around a blind corner, or over a blind hump,...
06-08-20, 12:39 PM
Replies: 14
Views: 549
Posted By dabac

+1 Outside valve adapters are only useful...

+1

Outside valve adapters are only useful for keeping stuff out of the rim cavity and do nothing for stem survival.

IME, YMMV.
06-05-20, 12:42 PM
Replies: 11
Views: 379
Posted By dabac

IME, lighter wheels makes the bike more...

IME, lighter wheels makes the bike more responsive at every speed change. And a more responsible bike is more fun to ride. I end up riding harder. And faster b/c of that.
Now, for road bikes, the...
06-05-20, 03:58 AM
Replies: 11
Views: 379
Posted By dabac

cassettes mainly differ in weight and surface...

cassettes mainly differ in weight and surface treatment. I’d be very sceptical about someone claiming to feel any difference between cassettes of the same degree of wear and tooth count.

Bike...
06-05-20, 03:36 AM
Replies: 10
Views: 294
Posted By dabac

The numbers match, so they will be meant to fit...

The numbers match, so they will be meant to fit anyhow. Actually mounting them may be either harder or easier. There is some production tolerance in both rims and tires.
06-05-20, 01:04 AM
Replies: 40
Views: 3,537
Posted By dabac

I found that torque-sensing to me provides more...

I found that torque-sensing to me provides more of an incentive to put the effort in myself. I add more, and the motor adds more. Feels so natural.
With a cadence system, I’m far more likely to...
06-04-20, 12:56 AM
Replies: 11
Views: 493
Posted By dabac

Cassette rust is mainly cosmetic. It’ll wear...

Cassette rust is mainly cosmetic.
It’ll wear off in minutes from the flanks on the teeth.
06-04-20, 12:45 AM
Replies: 10
Views: 383
Posted By dabac

A 7-speed derailer will shift over a 9-speed...

A 7-speed derailer will shift over a 9-speed cassette just fine.
The indexing is done by the shifter.
But you do need to use a 9-speed shifter - or friction shifting - to be able to use a 7-speed...
06-03-20, 01:57 PM
Replies: 150
Views: 17,550
Posted By dabac

I find it unusual how clean the breaks are. I...

I find it unusual how clean the breaks are.
I have seen a fair amount of failed aluminium frames, and even among those I’d struggle to find such clean fracture lines.
And this was a steel frame,...
06-01-20, 03:51 AM
Replies: 27
Views: 978
Posted By dabac

The easiest way to an SS is to stop shifting. ...

The easiest way to an SS is to stop shifting.
derailer gear bikes are meant to derail. Removing derailers and keeping it reliable usually means adding other bits and pieces to keep the chain...
05-28-20, 12:16 AM
Replies: 39
Views: 1,924
Posted By dabac

If the wheel held fast - didn’t wobble as you...

If the wheel held fast - didn’t wobble as you rode or braked, I can’t see a direct path between your observation and something bad happening. At least not anytime soon.


It’s very common to have...
05-27-20, 02:59 AM
Replies: 8
Views: 336
Posted By dabac

If I think I’ve taken up too much of the BA’s...

If I think I’ve taken up too much of the BA’s travel before shifting is OK I might unclamp the cable, push the RD in by hand a little before clamping the cable down again.
Fast, but easy to overdo...
05-18-20, 12:00 PM
Replies: 40
Views: 1,240
Posted By dabac

I’ve extended galvanized shifter cables Several...

I’ve extended galvanized shifter cables Several times. Simply by winding them around each other in a lazy spiral, then soldering.It has worked so well I’d forgotten about it and been surprised by it...
05-10-20, 08:59 AM
Replies: 24
Views: 633
Posted By dabac

I haven’t tried on a bicycle. But: - spokes...

I haven’t tried on a bicycle.
But:
- spokes are at risk of fatigue failure. I’d be wary of holding one with a plier with a cutting jaw. Seems like the nicks created by the jaws would be great...
05-05-20, 02:17 AM
Replies: 2
Views: 146
Posted By dabac

The cassette mounts to the freehub BODY, which in...

The cassette mounts to the freehub BODY, which in turns mounts to the hub. What you suggests will tighten the f/h body to the hub while doing nothing for how tight the cassette is mounted to the f/h...
05-01-20, 03:20 AM
Replies: 11
Views: 469
Posted By dabac

Rim longevity is hugely dependent on ride...

Rim longevity is hugely dependent on ride conditions. On my first MTB, that saw a lot of really muddy use, I think the first set of rims called it quits after less than 3 years of weekend riding....
Forum: Fatbikes
04-24-20, 02:39 AM
Replies: 13
Views: 1,643
Posted By dabac

For pressure: The area of your butt that’s...

For pressure:
The area of your butt that’s actually fit to carry weight is quite small. It needs time to acclimatize. Imagine starting to put weight on your foot after weeks in a cast, only worse....
Forum: Commuting
04-23-20, 12:53 AM
Replies: 19
Views: 1,528
Posted By dabac

https://cimg1.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg1.ibsrv.net/gimg/bikeforums.net-vbulletin/640x480/c7f99366_d07b_4730_a5da_4150a8b0833f_f39454ab7a7057c11e5f8fa7632122fe17d92c52.jpeg
Tan wall
04-22-20, 12:03 PM
Replies: 4
Views: 299
Posted By dabac

Or you can simply buy some of a suitable diameter...

Or you can simply buy some of a suitable diameter and cut them down. Last time, I found a pair with a circular pattern that could be used as a cutting guide. If you need to scoot the shifters inboard...
Forum: Commuting
04-22-20, 12:46 AM
Replies: 19
Views: 1,528
Posted By dabac

I replaced a pair yesterday, on a flip bike....

I replaced a pair yesterday, on a flip bike. Apparently, under some parking/storage conditions, the sidewall will rot out long before the tread wears out. Either ride frequently or park out of direct...
04-21-20, 02:28 PM
Replies: 11
Views: 350
Posted By dabac

I’ve brought back some badly warped rims. But...

I’ve brought back some badly warped rims. But then I’ve unlaced them entirely prior to bending them back into flat. Those have been possible to lace back into round and evenly tensioned.
What...
04-20-20, 04:17 AM
Replies: 26
Views: 1,313
Posted By dabac

From a maintenance perspective, working on a bike...

From a maintenance perspective, working on a bike that’s seen considerable use is like working on a time bomb - you never know when the next part will ”go off”.
Not entirely sure about ”Derailer...
Forum: Folding Bikes
04-09-20, 06:09 AM
Replies: 3
Views: 657
Posted By dabac

The technical name for the cables that operate...

The technical name for the cables that operate mechanical shifters and brakes is ”Bowden cable”.
The way a Bowden cable works is that the sheath/outer cable/casing will push just as hard as the...
03-31-20, 11:06 PM
Replies: 11
Views: 533
Posted By dabac

The general recommendation WRT sus-to-rigid...

The general recommendation WRT sus-to-rigid conversion is to look for a fork with an axle-to-crown (ATC) length equal to the ”sagged” length of the fork. The ”sag” is the amount of compression you...
03-31-20, 12:40 AM
Replies: 7
Views: 480
Posted By dabac

That surprises me. The general recommendation...

That surprises me. The general recommendation when going from sus to rigid - assuming you want least amount of change to handling - is to look for a fork that matches the ”sagged” height of the sus...
03-29-20, 02:16 AM
Replies: 18
Views: 1,036
Posted By dabac

You can fit a new front wheel w/o any issues. ...

You can fit a new front wheel w/o any issues.
Rear will pose some challenges. A cassette rear will be wider than the original. You’ll need to pry the rear stays apart to get the wheel in. Often...
03-28-20, 11:36 AM
Replies: 2
Views: 166
Posted By dabac

That’s just surface rust. Nothing to worry about....

That’s just surface rust. Nothing to worry about. Hit it with a coat of linseed oil if you wish.
03-24-20, 11:09 PM
Replies: 93
Views: 5,409
Posted By dabac

+1

+1
Forum: Road Cycling
03-24-20, 01:22 PM
Replies: 76
Views: 2,739
Posted By dabac

I like to refer to things like that with...

I like to refer to things like that with ”Something being true doesn’t guarantee that it’s important”.
01-27-20, 02:16 PM
Replies: 25
Views: 957
Posted By dabac

If you’re a riding robot, then it doesn’t matter...

If you’re a riding robot, then it doesn’t matter where the weight is saved.
IMO though, a lighter bike responds quicker to rider input. It feels more lively. As a consequence, riding becomes more...
12-22-19, 10:27 AM
Replies: 10
Views: 1,610
Posted By dabac

Considering certain practises regarding...

Considering certain practises regarding relocation of priests with certain questionable personal preferences, I’m not sure how useful the Vatican is as a moral reference....
12-20-19, 01:51 AM
Replies: 7
Views: 502
Posted By dabac

If they move while riding, my first guess is that...

If they move while riding, my first guess is that the nut is bottoming out on the threads before clamping properly. Try adding another washer under the nut.
Forum: Road Cycling
12-20-19, 01:46 AM
Replies: 30
Views: 1,481
Posted By dabac

”Stronger” can be a tricky word. if you think...

”Stronger” can be a tricky word.
if you think you're better off with a thicker spoke, you’re probably wrong.

Most spokes fail by fatigue, like when bending a paperclip repeatedly at the same...
Showing results 1 to 50 of 71
 


 
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