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Search: Posts Made By: Bike Gremlin
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08-06-22, 09:50 AM
Replies: 17
Views: 384
Posted By Bike Gremlin

Having tried this both with discs and V-brakes, I...

Having tried this both with discs and V-brakes, I can confirm what you wrote here, and add:
Even minor pad wear needs to be compensated by barrel adjusting the brake cable tension, otherwise you get...
08-06-22, 03:11 AM
Replies: 17
Views: 384
Posted By Bike Gremlin

1. Yes, calipers are different. Drop bar levers...

1.
Yes, calipers are different. Drop bar levers pull less cable, so the leverage arm that is pulled by the cable is shorter on disc brake callipers, to avoid having too much mechanical advantage,...
08-05-22, 02:57 PM
Replies: 16
Views: 269
Posted By Bike Gremlin

Tiagra 4700 is newer, so it works with the rest...

Tiagra 4700 is newer, so it works with the rest of the Shimano road 11-speed derailleurs (front and rear).
Doesn't with the older models (front and rear).
To be more precise - I couldn't get it to...
08-05-22, 01:29 PM
Replies: 16
Views: 269
Posted By Bike Gremlin

Should have measured - it's a good idea. FDs...

Should have measured - it's a good idea.
FDs were less "problematic" until relatively recently, when Shimano made their own different standards for the new road and "gravel" groups.
I should...
08-05-22, 10:53 AM
Replies: 16
Views: 269
Posted By Bike Gremlin

No confidentiality agreement (I've got no contact...

No confidentiality agreement (I've got no contact with bike manufacturers).

As for the info - it's a mix-match I gathered over the years.
Some of my own measurement, some from other mechanics,...
08-05-22, 01:01 AM
Replies: 16
Views: 269
Posted By Bike Gremlin

It will most probably not work very well. 4700...

It will most probably not work very well. 4700 pulls a lot more cable per shift - even for the front.

My compatibility mix-matchin notes...
08-01-22, 09:33 PM
Replies: 21
Views: 431
Posted By Bike Gremlin

In that case, I'd try with a chain tensioner that...

In that case, I'd try with a chain tensioner that is designed to push the chain up, like the afore-mentioned Shimano's model.
08-01-22, 05:29 AM
Replies: 21
Views: 431
Posted By Bike Gremlin

Are the chain and the (rear) sprocket new? ...

Are the chain and the (rear) sprocket new?
Where does the skipping occur when you pedal hard - at the rear, or at the front?

Basically, my line of thought is to make sure the sprocket and the...
07-27-22, 02:41 AM
Replies: 6
Views: 225
Posted By Bike Gremlin

If it's of any help: I'm running Sora...

If it's of any help:

I'm running Sora compact cranks, Shimano Hollowtech II type, on a bike with 68mm wide BSA threaded BB shell.
I mounted Tiagra RS500 hollowtech BB cups, without the 2.5 mm...
07-26-22, 10:26 PM
Replies: 31
Views: 532
Posted By Bike Gremlin

Good points. Though, for me at least, learning...

Good points.
Though, for me at least, learning from books is faster and somehow more "comprehensive" compared to using videos.

Some prefer seeing it shown (videos). Park Tool is as good as it...
07-25-22, 05:23 AM
Replies: 23
Views: 409
Posted By Bike Gremlin

I put a new chain and test if it skips under...

I put a new chain and test if it skips under load.
All the other methods are not very accurate.
Visual inspection especially.
Visual inspection works OK for the fornt chainrings, but not for the...
07-24-22, 11:59 PM
Replies: 31
Views: 532
Posted By Bike Gremlin

My 2c - not saying it's the best option for...

My 2c - not saying it's the best option for everyone:

Shimano mid-range hubs offer a good bang-for-the-buck and are of a decent quality and durability.
Aluminium double-walled rims - whichever...
07-23-22, 10:38 AM
Replies: 17
Views: 392
Posted By Bike Gremlin

My explanation of the optimal tyre pressure...

My explanation of the optimal tyre pressure (https://bike.bikegremlin.com/799/pressure-i-inflate-bicycle-tyres/) (depending on the tyre size and rider+bike+luggage weight).

If you determine the...
07-23-22, 06:08 AM
Replies: 4
Views: 168
Posted By Bike Gremlin

Here's my take on chain compatibility...

Here's my take on chain compatibility (https://bike.bikegremlin.com/1220/1-bicycle-chains-compatibility/) (wrote it down for my own use, has worked for me so far, but use your own common sense and...
07-03-22, 08:43 AM
Replies: 8
Views: 273
Posted By Bike Gremlin

Generally - I'd say no. You will likely see...

Generally - I'd say no.

You will likely see V-brakes move too little by the time calliper lever reaches the bars (great mechanical advantage though, and if you manage to run the pads just a...
06-21-22, 01:44 PM
Replies: 4
Views: 1,053
Posted By Bike Gremlin

Late reply - didn't see this. Sorry. Thank...

Late reply - didn't see this. Sorry.

Thank you very much for the feedback, it's appreciated.

It's an ever-lasting battle between preventing spam, and making the comments work.
You may have...
06-21-22, 01:26 PM
Replies: 4
Views: 1,053
Posted By Bike Gremlin

Sorry for the late reply - didn't get a...

Sorry for the late reply - didn't get a notification.

A good suggestion.

I'm not sure which is easier to measure (if we keep drop-bar levers in mind), but it certainly wouldn't hurt to add more...
06-19-22, 11:36 PM
Replies: 49
Views: 1,300
Posted By Bike Gremlin

A good example. I recently bought some...

A good example.

I recently bought some cranks for myself (double, compact - Shimano Sora class) that cost less than sourcing 2 new chainrings locally, for the old square taper cranks.

ChimeraKC...
06-19-22, 06:32 AM
Replies: 49
Views: 1,300
Posted By Bike Gremlin

Without taking a look at your bike, and at the...

Without taking a look at your bike, and at the local parts availability (not taking that for granted), it's difficult to answer that question - at least for me. :(
06-11-22, 10:49 PM
Replies: 8
Views: 269
Posted By Bike Gremlin

32 spokes laced 2x make for a less strong wheel...

32 spokes laced 2x make for a less strong wheel compared to lacing 3x.

This is my spoke-length calculator of choice:
https://www.wheelpro.co.uk/spokecalc/

(if using that one, make sure to...
06-11-22, 08:19 AM
Replies: 15
Views: 8,824
Posted By Bike Gremlin

I'd say that using the seatpost (especially if...

I'd say that using the seatpost (especially if it's replaceable - some are odd-shaped and very "exotic") is the safest way to do it.

Clamping on the seat tube poses two risks:
- Super-shiny paint...
06-09-22, 10:46 PM
Replies: 14
Views: 421
Posted By Bike Gremlin

For what it's worth: this (internal-cam QR...

For what it's worth: this (internal-cam QR skewer) has worked for me with a powder-coated horizontal-dropout frame.
06-04-22, 10:54 AM
Replies: 8
Views: 333
Posted By Bike Gremlin

I've had good results using 18 to 28 mm tubes in...

I've had good results using 18 to 28 mm tubes in 32 mm wide tyres.

Going for 37 mm was stretching it a bit and, depending on the pressure, tube getting stretched open can happen (tried it, with...
Forum: Road Cycling
06-03-22, 11:20 AM
Replies: 20
Views: 668
Posted By Bike Gremlin

This. If you get a lot of (small) punctures,...

This.

If you get a lot of (small) punctures, it makes more sense to go tubeless (instead of riding those brick-hard puncture-resistant tyres).
Otherwise - in my opinion, they are a bit more...
06-01-22, 11:06 AM
Replies: 32
Views: 795
Posted By Bike Gremlin

If it's of any help, I wrote in some detail about...

If it's of any help, I wrote in some detail about the shifter, brake cable, and housing standards (https://bike.bikegremlin.com/8548/cable-housing-standards/) - with pics and all. :)
05-29-22, 06:58 AM
Replies: 12
Views: 380
Posted By Bike Gremlin

I've seen some local shops just create a frame,...

I've seen some local shops just create a frame, then stack plastic (water-pipe) tubes. Closed at the rear, open from the front. Horizontally stacked on top of each other.

You can't just place a...
05-28-22, 09:55 PM
Replies: 16
Views: 321
Posted By Bike Gremlin

I always use Rema Tip-Top patches and glue. ...

I always use Rema Tip-Top patches and glue.
Even during the times of greatest crises and scarcity, I've always been able to have and keep a small stock of those.
When I use that (along with...
05-23-22, 12:50 AM
Replies: 29
Views: 1,366
Posted By Bike Gremlin

If this info is of any help: The biggest...

If this info is of any help:

The biggest cycling forum in my native language (under 100 posts per day, so far from a high traffic site) uses a policy that new users must have their first 3 posts...
Forum: Road Cycling
05-21-22, 02:59 AM
Replies: 58
Views: 1,551
Posted By Bike Gremlin

Opinions and experiences differ on this, but...

Opinions and experiences differ on this, but here's mine:

I don't exceed the max. recommended pressure - just to be on the safe side.
(having said that, I'm far from a super-heavy rider so I'm...
05-14-22, 02:12 PM
Replies: 8
Views: 410
Posted By Bike Gremlin

If it's of any help, my height is 178 cm and...

If it's of any help, my height is 178 cm and these are the dimensions of my DIY repair stand (https://bike.bikegremlin.com/9838/bicycle-repair-stand-diy/#4).
It's not too high in case I need to use...
05-04-22, 08:32 AM
Replies: 12
Views: 557
Posted By Bike Gremlin

Freewheel itself does not make for a very strong...

Freewheel itself does not make for a very strong wheel (axles can bend more easily than with freehubs).
Re-spaced singlespeed hub conversion makes things even worse - your left hand side spokes...
04-29-22, 11:53 PM
Replies: 123
Views: 41,321
Posted By Bike Gremlin

Good points. I'd add that marketing can and...

Good points.

I'd add that marketing can and does greatly affect what customers want.
It's not the other way round, for the most part.
Though it's fair to say that smaller companies don't have...
04-23-22, 02:23 AM
Replies: 26
Views: 848
Posted By Bike Gremlin

My long-winded drivel on the topic - with a note...

My long-winded drivel on the topic - with a note that my priority is cheap and reliable, not the latest & greatest:

https://www.youtube.com/watch?v=KPgOX35BuG0
04-22-22, 12:25 AM
Replies: 45
Views: 1,252
Posted By Bike Gremlin

I like and use this one: Topeak MINI 18+...

I like and use this one:
Topeak MINI 18+ (https://www.topeak.com/global/en/products/75-Mini-Tools/173-MINI-18+)
04-18-22, 01:26 AM
Replies: 20
Views: 758
Posted By Bike Gremlin

I would expect 1-1/8 threadless cups to fit that...

I would expect 1-1/8 threadless cups to fit that frame, along with a fork that is not tapered.

Does ATC stand for Axle To Crown?
If yes, then know that a shorter fork will tilt the entire bike...
Forum: Road Cycling
04-16-22, 11:23 PM
Replies: 43
Views: 1,828
Posted By Bike Gremlin

What the others have said. I'd just add: ...

What the others have said.
I'd just add:
Longer chainstays = better handling at speeds over 20 km/h.
Forum: Commuting
04-14-22, 09:12 AM
Replies: 25
Views: 7,353
Posted By Bike Gremlin

I just strap a backpack with a bungee cord. A...

I just strap a backpack with a bungee cord.
A lot more convenient to carry off the bike (high theft country).
For pouring rain, I go with Ortlieb panniers.
04-11-22, 11:53 AM
Replies: 6
Views: 372
Posted By Bike Gremlin

No experience with that particular...

No experience with that particular brand/model/type.
Generally, I've had no problems going a size-up with a tyre, compared to the tube. I even prefer it to a reversed scenario (tube being too wide...
04-05-22, 05:05 AM
Replies: 18
Views: 411
Posted By Bike Gremlin

More speeds = thinner plates on the quick links. ...

More speeds = thinner plates on the quick links.

I've never seen a single-use 8-speed quick link, while I've seen many single-use 10 and more speeds links. I have successfully re-used 10 speed...
Forum: Road Cycling
04-02-22, 01:58 PM
Replies: 64
Views: 3,394
Posted By Bike Gremlin

My worry about carbon fibre is that it can start...

My worry about carbon fibre is that it can start "cracking" on the inside.
While metal frames (steel, aluminium, titanium) show cracks on the outside, easily visible before they fail.
With carbon...
Forum: Commuting
04-02-22, 01:28 PM
Replies: 48
Views: 2,042
Posted By Bike Gremlin

For bikes that aren't road bikes (so not sitting...

For bikes that aren't road bikes (so not sitting bent much forward), I love the Brooks Flyer.
The springs are stiff enough to not keep bouncing when I'm pedalling, while still doing their job when I...
03-23-22, 08:05 AM
Replies: 32
Views: 894
Posted By Bike Gremlin

If you don't have a way of moving the chainring...

If you don't have a way of moving the chainring further inwards (towards the bike), you might end up with a chain severely crossed when using the largest few rear sprockets.
If chainring's position...
03-21-22, 08:53 AM
Replies: 22
Views: 15,083
Posted By Bike Gremlin

Internet is always full of different opinions -...

Internet is always full of different opinions - here's my 2c:

If a hub is not pitted/damaged, I always set it to zero play.
Testing when the quick release is tightened, of course - for hubs with...
Forum: Commuting
03-17-22, 01:22 PM
Replies: 38
Views: 2,406
Posted By Bike Gremlin

I'm not sure it's the same for the front light,...

I'm not sure it's the same for the front light, for reasons explained in my first post in this topic/thread.
Suppose that blinking + steady for the front is the best possible scenario (best of both...
Forum: Commuting
03-17-22, 08:43 AM
Replies: 38
Views: 2,406
Posted By Bike Gremlin

For clarity, if I got the study right, the...

For clarity, if I got the study right, the experiment compared day-time running lights vs no daytime lights.
Not the blinking lights vs steady beam lights.

That makes perfect sense and, for what...
03-16-22, 07:30 AM
Replies: 8
Views: 426
Posted By Bike Gremlin

I've had good luck even with used (old) Shimano...

I've had good luck even with used (old) Shimano dynamo hubs, mostly with a solid axle, or with a quick release.
Recently, for my own bike, I risked buying a brand new one - with a quick release....
Forum: Road Cycling
03-16-22, 02:22 AM
Replies: 26
Views: 1,408
Posted By Bike Gremlin

I'm happy to see road bike tyres (slick profile)...

I'm happy to see road bike tyres (slick profile) being available in a 28 mm width. It wasn't always so, at least not in my country. Don't feel like going back to any slimmer ones. Not racing or...
Forum: Commuting
03-16-22, 02:17 AM
Replies: 38
Views: 2,406
Posted By Bike Gremlin

For the rear light, your speed effectively...

For the rear light, your speed effectively detracts (reduces) the speed of the vehicles coming from behind. And you are usually right in front of them. So a blinking light is likely to have enough...
03-16-22, 01:11 AM
Replies: 33
Views: 860
Posted By Bike Gremlin

Apologies in advance for the off-topic post. ...

Apologies in advance for the off-topic post.

First, this being a written "conversation" in a language that isn't my native, it should be stressed that I'm not being sarcastic nor trying to address...
03-07-22, 01:31 PM
Replies: 20
Views: 647
Posted By Bike Gremlin

That's a good point. For wheels with few spokes,...

That's a good point. For wheels with few spokes, nipple to rim interface strength can definitely be a limiting factor.
The more spokes a wheel has, the higher the probability that the limiting...
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