CTC Forum - MTB

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Updated: 2 hours 7 min ago

Re: Giant MPH hydrolic disc brake jammed on..

5 July 2015 - 1:51pm
Its It's common in the hot weather on the MPH. If the adjusting wheel on the master cylinder doesn't have enough adjustment to cure it then crack open the bleed nipple on the caliper and let out a tunt dribble of fluid.

Re: Giant MPH hydrolic disc brake jammed on..

4 July 2015 - 6:15pm

Just a note to say thanks, just came across this when having a recurring problem with my old mountain bike and never been really bothered to get it sorted (it's not that hilly to the pub )

But was playing this afternoon and finally got around to fixing it.

Couldn't work out why it wasn't working, then if finally dawned on me that the plunger wasn't supposed to be tightly screwed onto the thread !! Doh !!

Thanks again


Re: Expected 'lifetime' of a 7005 alum frame??

4 July 2015 - 12:42pm
If you're heat treatment, yes. Even powder coating it requires the heat treatment be redone.

Re: Expected 'lifetime' of a 7005 alum frame??

1 July 2015 - 7:27pm
Does 7005 need heat treatment after welding?

Re: Expected 'lifetime' of a 7005 alum frame??

30 June 2015 - 8:34am
Too open a question. 7005 is the raw material but there are quite literally thousands of combinations of butting, tube manipulation, heat treatment, methods of bonding or welding etc to give a sensible answer.

Re: Tyre suggestions for hardtail

29 June 2015 - 11:03am
I like Panaracer Fire XC Pro, but probably ride something a bit more sandy / gravelly. Probably the best solution is to ask at a decent local bike shop about what they recommend.

Re: Newbie friendly MTB trail

27 June 2015 - 3:43pm
If we are in the Peaks the run around the Ladybower and Derwentwater is nice and mild, with a bit of clunckety-clunk trail. I do that occasionally on my hybrid. About 25 miles.

Don't forget to wild swim. You can bike right+ up to it.

There also various diversions which make it more interesting.

Check out Dean Read's peakroutes.com site here, which walking but also has mtbing.

And there are quite a number of routes published by the Local Authorities here:

The MTB icon is the one that looks like you are carrying 2 fishing.


Re: Tyre suggestions for hardtail

26 June 2015 - 5:11pm
Panaracer Trailrakers


Tyre suggestions for hardtail

26 June 2015 - 4:59pm
I've an old (1999) Orange hard-tail. For ages, it's run WTB Velociraptor's in 26x44/50, but my last set are now shot. A few online reviews suggest the current Velociraptor aren't anything like as good as the old ones. So, what to get ? The more I read the more confused I get !

Riding is mixed, though Cross-Country is perhaps the best description. I expect it to do mountains in wet and dry (including a few lake district bridleways), hills (eg. Derbyshire, N Yorks Moors), and bits of Scotland (though mostly using stalking tracks as access for walking). Locally its sandy or muddy bridleway routes, but I don't use those often. I have done routes a few made centres, such as Whinlatter, though that's not my usual choice. Road riding is only done to get between off-road bits, or very occasionally in local winter snow, so I am not really bothered about road performance.

Thoughts anyone ?

Re: Expected 'lifetime' of a 7005 alum frame??

16 June 2015 - 3:21pm
Aluminium does indeed have a finite fatigue life, unlike steel. Of course any frame if underbuilt will crack and fail eventually, regardless of material. There are plenty of cracked steel frames which were built carelessly.
Later (say from 1999ish) Alu MTB frames are built very stiffly and so have very long fatigue lives. Early 90s frames tend to have cracks far more commonly.

I ride an aluminium MTB frame, I check it carefully around the head tube and BB each year when it gets an overhaul. Other than that, I don't worry about it at all.

Kona mahuna, voodoo bizango or orbea mx20

16 June 2015 - 1:01am
Hello everyone,

I'm looking to buy my first real mtb for xc over the harsh terrain which is the Lancashire moors. The Internet says to buy the oh so good voodoo bizango but my LBS advised me to go for the kona mahuna or orbea mx20 (he doesn't sell voodoo, but his advice seems genuine and not a money grab).

Now, my biggest issue is the lack of reviews of the kona or orbea. Can't find them anywhere and I swear I've spent about 16hrs looking over last week - I must not know the right places to look!

Could you kind folk help by giving some advice on which to go for? All 3 are £600 or less. Is the voodoo really that good? Which frame is best?
The Halford sale ends today so the bizango will be 600 from midnight, a quick response is appreciated!


Re: Expected 'lifetime' of a 7005 alum frame??

10 June 2015 - 5:23pm
My LBS, when they existed, used to say that aluminium frames had a limited lifespan as alu didn't age well. It either softened or hardened, I can't remember which, and this change resulted in problems.

Re: Expected 'lifetime' of a 7005 alum frame??

10 June 2015 - 4:07pm
If the frame is designed and built right with no stress risers, then practically a lifetime. The best ones are the ones that haven't changed design for a number of years so the bugs have been worked out.


8 June 2015 - 5:54pm
Even better, remove the chain. Soak in parrafin and scrub with a toothbrush. Not the easiest but works the best. If you do use wd40, make sure to lubricate with something else before you ride.

Re: Mud

8 June 2015 - 10:42am
Hose, midpoint of the chain drag so that it's away from the bearings. Then (as you did ask for 'easiest') use WD40 for what it's designed for and spray the chain to drive out the water, then oil the chain with your favourite chain oil.


7 June 2015 - 2:13pm
Anybody know easiest way to get mud off chain?

Re: Expected 'lifetime' of a 7005 alum frame??

1 June 2015 - 1:05pm
drossall wrote:Are we really in a world now where bikes must be replaced every few years, however much use they have had?
No, but it might be worth considering for owners of heavily used old Alu bikes.

Re: Expected 'lifetime' of a 7005 alum frame??

30 May 2015 - 1:46pm
This kind of thread does make me worry. I've got a Specialized FSR MTB from about the year 2000, and a very nice Principia road bike from five or six years later. I like both, but they are lightly used because I more often ride steel frames and they are my token "new" technology. I have no need to update either, but then people come along and ask whether older alloy is safe.

Are we really in a world now where bikes must be replaced every few years, however much use they have had? Give me steel any day...

Re: Expected 'lifetime' of a 7005 alum frame??

30 May 2015 - 1:09pm
I agree with the other comments posted here - it depends on how well the frame is made. I remember having a Peugeot Comete Sprint from the 1988 range - the frame was literally glued together! http://www.cyclespeugeot.com/PDFs/1988UK.pdf I have had a cheap Ribble 7005 road frame that showed wear after five years but also Cannondale frames which are still going strong after 15 years. Manufacturing technique and brand quality are incredibly important I would argue.

Re: 29 incher - all hype?

28 May 2015 - 2:56pm
For XCM the 29'er is the overwhelming favorite. If you look at the bikes of the recent ABSA Cape Epic, the 29er is the overwhelming favorite. Having owned and ridden all three sizes fairly extensively, I personally don't see the purpose of the 650b.ImageUploadedByTapatalk1432821329.183550.jpg


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