Stuff you learn(t) the hard way by being your own mechanic

[MrJacques]

Bike Mechanic Simulator Game - The Hub - Mountain Biking Forums / Message Boards - Vital MTB

Now you can break a virtual bike

[Nakoota]

Don't try and remove an eagle cassette mounted to hope pro 4 hubs, the hub end cap restricts the cassette tool insert depth and stripping is likely.

[100Tours]

Specialised briefly produced a brand spanking new-and-unique rear hub standard for disks called SCS on the Diverge, Roubaix and the Crux a few years ago. While most gravel/road disk hubs were 135mm wide, SCS was 137.5mm in width. i.e. the extra 2.5mm basically indistinguishable to the naked eye - you didn't even need a different length thru axle. There was no branding on these frames that might give away their engineering brilliance either. The difference in frame clearance off of the disk itself was about 1.5mm. 

Then they sold their bikes with an unremarkable in-house wheelset that begged to be upgraded.

You can just imagine my surprise..

 

[Hairy]

1 hour ago, 100Tours said:

Specialised briefly produced a brand spanking new-and-unique rear hub standard for disks called SCS on the Diverge, Roubaix and the Crux a few years ago. While most gravel/road disk hubs were 135mm wide, SCS was 137.5mm in width. i.e. the extra 2.5mm basically indistinguishable to the naked eye - you didn't even need a different length thru axle. There was no branding on these frames that might give away their engineering brilliance either. The difference in frame clearance off of the disk itself was about 1.5mm. 

Then they sold their bikes with an unremarkable in-house wheelset that begged to be upgraded.

You can just imagine my surprise..

 

so you need 2 x 1.25mm brass or similar shims now to run a std width hub?

[M L]

On 3/12/2022 at 5:16 PM, MrJacques said:

Well, it's off

Without a compressor or maybe a syringe with soapy water it's going to be tricky to get those off.

 

Sticking a piece of hard and thin plastic (like a coffee scoop’s backend) then spraying the inside (between handlebar and grip) with something like windowlene always helps me get mine off. 

[NotSoBigBen]

9 hours ago, 100Tours said:

Specialised briefly produced a brand spanking new-and-unique rear hub standard for disks called SCS on the Diverge, Roubaix and the Crux a few years ago. While most gravel/road disk hubs were 135mm wide, SCS was 137.5mm in width. i.e. the extra 2.5mm basically indistinguishable to the naked eye - you didn't even need a different length thru axle. There was no branding on these frames that might give away their engineering brilliance either. The difference in frame clearance off of the disk itself was about 1.5mm. 

Then they sold their bikes with an unremarkable in-house wheelset that begged to be upgraded.

You can just imagine my surprise..

 

 

7 hours ago, Hairy said:

so you need 2 x 1.25mm brass or similar shims now to run a std width hub?

My Tarmac Disc is one of those 'SCS' frames, stands for 'Short Chain Stay' if I recall ... Mine was one of the very first disc road models. I just run normal QR MTB hubs on mine despite what they say ... A bit tricky though because the chain can occasionally come off if you are in the big chainring and 1st on the cassette.

[Jensie]

On 5/15/2021 at 11:13 AM, ouzo said:

I've been using probikegarage. Gives hours and also gives the ability to set service intervals on each component.

Me too. Helps alot

[madmarc]

On 3/12/2022 at 5:02 PM, Nakoota said:

How not to remove these confounded bloody ESI Chunky grips

Taken off and re-installed these many times - its like a 2 hr gym session. Now I use a home compressor with one of the those trigger air nozzles. If you dont have a compressor then take the bike and grips down to the local garage and use their tyre pump. It now takes 2 min 

[100Tours]

12 hours ago, Hairy said:

so you need 2 x 1.25mm brass or similar shims now to run a std width hub?

4 hours ago, NotSoBigBen said:

 

My Tarmac Disc is one of those 'SCS' frames, stands for 'Short Chain Stay' if I recall ... Mine was one of the very first disc road models. I just run normal QR MTB hubs on mine despite what they say ... A bit tricky though because the chain can occasionally come off if you are in the big chainring and 1st on the cassette.

I eventually bought a 142mm adapter for my Hunt wheelset and carefully trimmed it to fit (over a few iterations). While shims would have been an option (if I recall the adjustments were 1x 1.7mm and 1x 0.8mm) they also needed to match the external diameter spec to fit into the frame cutouts. Also losing a shim while e.g. changing a flat seemed both inevitable and a little disappointing.

From another site - SCS moved the cassette 2,5mm inward on the hub to be able to get a decent chainline with short chainstays. But with moving the cassette 2,5mm inward and at the same time use 12x135 it ended up with aftermarket wheels being an issue as the cassettes would touch the frame, or once you got the cassette side right, then the disk would touch on the other side..

The Diverge launched with a 415mm rear stay - newer models have a 425mm stay and regular hubs.

Edited May 11, 2022 by 100Tours

[droo]

16 hours ago, Nakoota said:

Don't try and remove an eagle cassette mounted to hope pro 4 hubs, the hub end cap restricts the cassette tool insert depth and stripping is likely.

New cassette and freehub inbound.

 

You have to pull the adapter off before you remove the cassette. It's the only thing I don't like about Hope hubs.

[dave303e]

I learned the hard way not to order stuff when it is on special online, you are a little drunk and when you don't know it well.

 

Ordered a GX cassette, found out the bike had an NX cassette. Ended up ordering XD driver conversion as well. Lessons learned,

[Hairy]

37 minutes ago, dave303e said:

I learned the hard way not to order stuff when it is on special online, you are a little drunk and when you don't know it well.

 

Ordered a GX cassette, found out the bike had an NX cassette. Ended up ordering XD driver conversion as well. Lessons learned,

you were clearly not drunk enough, or else you would have ordered both the GX and NX cassettes 

[Grease_Monkey]

57 minutes ago, dave303e said:

I learned the hard way not to order stuff when it is on special online, you are a little drunk and when you don't know it well.

 

Ordered a GX cassette, found out the bike had an NX cassette. Ended up ordering XD driver conversion as well. Lessons learned,

Anything that gets you off an NX cassette sounds like a pretty good decision to me. 

[dave303e]

10 minutes ago, Grease_Monkey said:

Anything that gets you off an NX cassette sounds like a pretty good decision to me. 

that one less tooth on the small gear is actually noticeable, so it was worth it in my mind.

[TheoG]

16 hours ago, dave303e said:

that one less tooth on the small gear is actually noticeable, so it was worth it in my mind.

NX cassette on my IDT is working 100%.  But yes, never on a bike ....  

[michaelbiker]

23 hours ago, madmarc said:

Taken off and re-installed these many times - its like a 2 hr gym session. Now I use a home compressor with one of the those trigger air nozzles. If you dont have a compressor then take the bike and grips down to the local garage and use their tyre pump. It now takes 2 min 

A plastic chopstick and meths. Feed the chopstick in under the grip. Pour some meths in and twist. It will come off really easily. When putting back on just cover the inside with meths and slide on. Have never ripped or destroyed a grip. It sometimes helps to wear a glove to prevent your hand from slipping.