The QUICK question thread.....

[oldcorollas]

If you push the derailleur back by hand does it still have further travel?
How much does the wheel move back during suspension travel?

wheel doesn't seem to move back much at 2/3rds travel, cage angle stays same. (2011 Trance with whopping <120mm of Maestro travel)

pushing the cage back.. LHS is as is,
RHS is pushed back where chain goes straight, but can keep going back far enough to come off that pulley heaps/too much

Maybe dont huck to flat.

i never mean to.. but often run out of talent

Thanks People! will see if it breaks in the morning

 

[Chriso_29er]

Looks like it still had a little travel left. Will see in the morning haha.

 

[ausdb]

The angry young man child has a mate who I shall refer to as "the barbarian" as he destroys stuff. I had offered the barbarians parents to have a look at his shifting issue as despite supposedly having had a visit to the bike shop it was still not working . The issue was obvious once up in the stand in some decent light, then when I took it apart I noticed the wavy tension washer had gone AWOL as well.





@ozzybmx this is almost looking like yours now! https://www.rotorburn.com/forums/index.php?threads/the-quick-question-thread.291005/post-3517195


So my quick question is SRAM 11sp B Bolt compatibility, are they interchangeable? I can get this

SRAM Rear Derailleur GX 1X11 B Bolt and Limit Screw Kit

Buy SRAM Rear Derailleur GX 1X11 B Bolt and Limit Screw Kit Now at Pushys. Lowest Price, Secure Shopping and Fast Delivery from Australia's Best Online Bike Store

www.pushys.com.au

Or this

SRAM XX1 Rear Derailleur 2013 B-Bolt and Limit Screw Kit

Buy SRAM XX1 Rear Derailleur 2013 B-Bolt and Limit Screw Kit Now at Pushys. Lowest Price, Secure Shopping and Fast Delivery from Australia's Best Online Bike Store

www.pushys.com.au

 

[pink poodle]

There was a link to very cheap marzocchi z1 air forks recently. Got me wondering - can the travel on those be slammed easily enough? Say I grabbed a 180mm version, how low could I get it?

 

[beeb]

There was a link to very cheap marzocchi z1 air forks recently. Got me wondering - can the travel on those be slammed easily enough? Say I grabbed a 180mm version, how low could I get it?

With normal airsprings from Fox/Marz, 130mm is the limit on the short side IIRC.

I shortened a set of Z1's to 120mm by modifying a 140mm shaft. Just have to tap out a roll-pin, re-drill the shaft (a set of V-blocks and a drill-press would be advisable) cut the shaft down, and reinstall the piston & roll-pin. Could easily make it 100mm instead if desired. Some folk say the negative spring will end up "too large" (ie: might cause excessive ramp-up in theory), but I didn't find any issue in reality. If anything the fork rode a bit nicer as the breakaway was a bit suppler.

 

[pink poodle]

With normal airsprings from Fox/Marz, 130mm is the limit on the short side IIRC.

I shortened a set of Z1's to 120mm by modifying a 140mm shaft. Just have to tap out a roll-pin, re-drill the shaft (a set of V-blocks and a drill-press would be advisable) cut the shaft down, and reinstall the piston & roll-pin. Could easily make it 100mm instead if desired. Some folk say the negative spring will end up "too large" (ie: might cause excessive ramp-up in theory), but I didn't find any issue in reality. If anything the fork rode a bit nicer as the breakaway was a bit suppler.

Coming from world renowned Dr Beebenson, I am assuming this is a fairly accurate and informative response. But alas I am too uninformed to understand.

 

[beeb]

Coming from world renowned Dr Beebenson, I am assuming this is a fairly accurate and informative response. But alas I am too uninformed to understand.

Knock out this (rolled) pin.

Drill new hole further up the shaft.
- However much further up the shaft is how much the travel gets reduced by.
- Hole must be the same diameter as the original so the roll pin is snug once installed.
- V-blocks (shown below) help keep the shaft from spinning/moving off-center while drilling. Keeping the drilling inline with the centre of the shaft is important to allow the roll-pin to reinstall easily and securely.

Cut off (now) excess shaft so the piston head (white plastic bit in first pick) can fit back on.

Inspect the roll-pin for cracks - and if all good, reinstall the air shaft piston head and tap the roll-pin back in with appropriately size hammermometer.

 

[pink poodle]

Oh now I see it...

I take it that the air shaft length is what dictates the amount of travel in these forks and a spacer isn't going to help?

 

[beeb]

I take it that the air shaft length is what dictates the amount of travel in these forks and a spacer isn't going to help?

Correct.

 

[pink poodle]

Correct.

Well I'm sad now. But thank you.

 

[dirtdad]

Should I use some carbon assembly paste on my aluminium dropper post in my aluminium frame if it keeps slipping even when torqued past spec (6nm spec, using about 10nm and still slipping)?
(Asking because I don’t have any, and want to know if it’s worth buying for this purpose)

 

[Freediver]

Should I use some carbon assembly paste on my aluminium dropper post in my aluminium frame if it keeps slipping even when torqued past spec (6nm spec, using about 10nm and still slipping)?
(Asking because I don’t have any, and want to know if it’s worth buying for this purpose)

It might work. If the problem is 31.6 hole and 30.9 post then it won't, you need to shim and go to COTF.

 

[Oddjob]

Should I use some carbon assembly paste on my aluminium dropper post in my aluminium frame if it keeps slipping even when torqued past spec (6nm spec, using about 10nm and still slipping)?
(Asking because I don’t have any, and want to know if it’s worth buying for this purpose)

Yes.

Sent from my M2012K11AG using Tapatalk

 

[Litenbror]

Should I use some carbon assembly paste on my aluminium dropper post in my aluminium frame if it keeps slipping even when torqued past spec (6nm spec, using about 10nm and still slipping)?
(Asking because I don’t have any, and want to know if it’s worth buying for this purpose)

Yeah use some assembly paste. It's likely that the inside of the seat post isn't properly round as wasn't reamed properly.

 

[nzhumpy]

How easy is it for an out of towner to get lost/navigate around Nerang?

We're heading in that direction next week and taking some bikes, just thinking if I can get a spare half day or so I might as throw the fun bike on the rack as well.

 

[Dales Cannon]

How easy is it for an out of towner to get assaulted and robbed in Nerang?

Really easy.

 

[nzhumpy]

Really easy.

Awesome, might just stay in NSW and take the surfboards...mind you, if it's this farken hot up there I won't be looking at a bike.

 

[ashes_mtb]

I need to run tubes tomorrow night thanks to the cracked front rim. Haven’t run tubes off road for years. How many thousand psi do I need to run to avoid pinch flatting (Maxxis DHRII 2.4x29 under a 105kg rider)?

 

[ozzybmx]

I need to run tubes tomorrow night thanks to the cracked front rim. Haven’t run tubes off road for years. How many thousand psi do I need to run to avoid pinch flatting (Maxxis DHRII 2.4x29 under a 105kg rider)?

You'll be safe with 28.

Check inside your tyres for thorns before putting the tubes in

 

[rockmoose]

I need to run tubes tomorrow night thanks to the cracked front rim. Haven’t run tubes off road for years. How many thousand psi do I need to run to avoid pinch flatting (Maxxis DHRII 2.4x29 under a 105kg rider)?

All of them.