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Search: Posts Made By: mostaza
Showing results 1 to 18 of 18
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Forum: Bicycle Mechanics
04-05-20, 11:45 PM
Replies: 33
Views: 2,840
Posted By mostaza

​​​I've come to the same conclusion. I measured...

​​​I've come to the same conclusion.
I measured without the tensioner and would definitely need a half link.
Will try it in its current format for a while, then look at getting rid of the tensioner.
Forum: Bicycle Mechanics
04-05-20, 03:23 AM
Replies: 33
Views: 2,840
Posted By mostaza

Would you expect the chain to be slipping in its...

Would you expect the chain to be slipping in its current setup?
46T front and 20T rear. Chainline good and tensioner as shown.

I'd say around at least ¼ of the sprocket teeth are engaging - so...
Forum: Bicycle Mechanics
04-05-20, 01:32 AM
Replies: 33
Views: 2,840
Posted By mostaza

Well that was an unmitigated disaster! A...

Well that was an unmitigated disaster!

A beautiful, quiet lockdown morning in Manchester, so I thought I'd try taking it out for a gentle ride to see how it felt.

Within the first few seconds...
Forum: Bicycle Mechanics
04-04-20, 02:14 PM
Replies: 33
Views: 2,840
Posted By mostaza

Sure thing. I'll get onto it tomorrow. A...

Sure thing. I'll get onto it tomorrow.

A question in the meantime - is it possible for the chain to be too tight if I'm using a sprung tensioner?
The tensioner is about half way between both...
Forum: Bicycle Mechanics
04-04-20, 11:01 AM
Replies: 33
Views: 2,840
Posted By mostaza

Had another tweak today. The sprocket was out...

Had another tweak today.
The sprocket was out by about 5mm.
I've rearranged the spacers, and remeasured the sprocket and chainring, and they're within 1mm as far as I can see (also looks right by...
Forum: Bicycle Mechanics
04-03-20, 08:22 AM
Replies: 33
Views: 2,840
Posted By mostaza

One thought - as stated in the original post,...

One thought - as stated in the original post, I've put the chainring on backwards.
Are chainrings directional?
Forum: Bicycle Mechanics
04-03-20, 07:37 AM
Replies: 33
Views: 2,840
Posted By mostaza

Thanks Litespud - I'll check it out again. ...

Thanks Litespud - I'll check it out again.

Last night I took the back wheel off, chain off, and measured to the centre of the frame from the chainring teeth centre; and also did some...
Forum: Bicycle Mechanics
04-03-20, 02:18 AM
Replies: 33
Views: 2,840
Posted By mostaza

Original post now edited with photos and video to...

Original post now edited with photos and video to help explain...
Forum: Bicycle Mechanics
04-03-20, 02:08 AM
Replies: 4
Views: 350
Posted By mostaza

A top tip (from an idiot!): Make sure the...

A top tip (from an idiot!):

Make sure the puller head fits in the hole - e.g. inside the square hole once the bolt is removed.

On my first outing as a home bike mechanic a few years ago, I...
Forum: Bicycle Mechanics
04-03-20, 02:03 AM
Replies: 12
Views: 4,124
Posted By mostaza

Can you tell us how the cranks are attached to...

Can you tell us how the cranks are attached to the axle? Is it three part? Splined (as opposed to square)?
Could it be that the bolts securing the crank to the axle are loose and the crank arm is...
Forum: Bicycle Mechanics
04-03-20, 01:59 AM
Replies: 12
Views: 1,320
Posted By mostaza

From the last image it does look like damage...

From the last image it does look like damage caused by expansion (split - pushed away from each other) rather than a stress fracture or general corrosion.
Forum: Bicycle Mechanics
04-03-20, 01:30 AM
Replies: 33
Views: 2,840
Posted By mostaza

As I tried to explain the post, I wouldn't...

As I tried to explain the post, I wouldn't describe it as "bad", it's just noisy. That is - it doesn't sound like damage is being done, it's just significantly louder than when it was geared with a...
Forum: Bicycle Mechanics
04-03-20, 01:11 AM
Replies: 33
Views: 2,840
Posted By mostaza

An update: I noticed when I was tweaking it...

An update:
I noticed when I was tweaking it last night, there is some resistance from the chainring/crank when turning them.
If I just use my little finger to gently push the crank arm, you can...
Forum: Bicycle Mechanics
04-03-20, 01:07 AM
Replies: 33
Views: 2,840
Posted By mostaza

Thanks Russ - as in the reply to Litespud, I've...

Thanks Russ - as in the reply to Litespud, I've since checked it any it seems fine by measurement and eye.
Forum: Bicycle Mechanics
04-03-20, 01:05 AM
Replies: 33
Views: 2,840
Posted By mostaza

I laid a metal rule against the chain ring and...

I laid a metal rule against the chain ring and sighted the rear sprocket by eye.
I've since taken measurements to the centre of the tube, and calcs of axle width minus sprocket from centre - it was...
Forum: Bicycle Mechanics
04-03-20, 01:02 AM
Replies: 33
Views: 2,840
Posted By mostaza

So with the chain tensioner I have, is it...

So with the chain tensioner I have, is it possible for it to be too tight?
It is resting about 1/3 to 1/2 way through its maximum amount of travel from one extreme to the other (sitting almost...
Forum: Bicycle Mechanics
04-03-20, 01:00 AM
Replies: 33
Views: 2,840
Posted By mostaza

Thanks - I'm pretty sure the BB is fine. I had...

Thanks - I'm pretty sure the BB is fine. I had ridden it as a geared bike for about 3 weeks before converting.
The last week just in a single gear to work out which rear sprocket to order.
There...
Forum: Bicycle Mechanics
04-02-20, 08:42 AM
Replies: 33
Views: 2,840
Posted By mostaza

SS Conversion - Noisy Chainring/Chain

Hi all.

I bought a good condition Marin Farifax SC4, which i have converted to single speed yesterday:
*Replaced cassette and derailleur with a 20T sprocket, spacers, and tensioner
*Replaced the...
Showing results 1 to 18 of 18


 
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