CTC Forum - MTB

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Updated: 1 hour 57 min ago

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!

Thanks,
Rob.

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.

Mud

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.

Mud

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

MTB Ride round coast of Spain

26 May 2015 - 7:43pm
Any one interested in joining me on a bike ride round the coast of Spain and & Portugal now postponed till I can find some one to go with me as I was let down by my friend I'm willing to postpone to a date that's good for you so long as it's not too late in the season as it would be too hot and ferry from Plymouth or Portsmouth to Santander Spain what ever suits you and returning same route all you will need is a good hard tail mountain bike with panniers and racks sleeping bag and your personal equipment and funds to pay your way. I have two man tent and all the camping equipment or you can use your own I can help with any bike repairs and servicing before we go and on route any questions please call me ASAP

PS check my videos on YouTube ( 25 stone rider ) of my last ride I did in Spain from Blanes to Valencia last November.

Re: Newbie friendly MTB trail

24 May 2015 - 10:03pm
Hi, mtb trails are colour coded in order of difficulty: http://imba.org.uk/where-to-ride/trail-grading/

Re: Newbie friendly MTB trail

24 May 2015 - 8:07pm
There are all types of trails in the Peak District.

Easier ones could be the Monsal trail:-
http://www.peakdistrict.gov.uk/visiting ... onsaltrail

Tissington trail:-
http://www.peakdistrict.gov.uk/visiting ... gton-trail

or round Derwent Reservoir :-
https://www.nationaltrust.org.uk/dark-p ... 403399966/

As an option - Do you have a "Rough Stuff Fellowship" in your area. They will have a wealth of offroad rides and most are not severe and good for beginners.
http://www.rsf.org.uk/

Re: Newbie friendly MTB trail

24 May 2015 - 12:11pm
https://m.youtube.com/watch?v=Q6-9z0D8_yk

That Clayton trail looks nice sorry I am not from your area, but I am sure some folk here know
of something me good off road trails. Maybe the National Cycle Routes in your area can offer you something.

I don't think your bike could do extreme downhill redbull wall of death riding, but for burning up trails and waving at college cows it should be great. Post some pics of your ride when you get a chance

Newbie friendly MTB trail

23 May 2015 - 8:38pm
Hi
I'm trying to get into MTB. I have tried out the blue trail @ clayton ville MTB trails.

I have two questions

1) is my my bike suitable for whatever type of trail clayton is?

2) are there any novice trails you can recommend that commutable from Manchester

Re: Enjoying mtb'ing

20 May 2015 - 12:41pm
al_yrpal wrote:samsbike wrote:al_yrpal wrote:Cheapo MTB forks bounce. With that Lefty I never have to lock it out, its beautifully damped and there is no bobbing uphill. You just float over 'stoppers'. So, it depends on your fork. Same goes for the rear, well adjusted that branch that would shoot from your rear tyre is just ridden over smoothly and you dont find you are suddenly stopped when it gets scudded away and you land with a bump after loosing traction. When I got the Cannondale it transformed my off road riding.

Al

Al you are the same height as me, or near enough, we really have to trade bikes sometime

No probs, after my arm heals up come down here and we'll hit the trail.
As Si says it depends on the terrain. Around here a lot is natural bridleways in forest, lots of deep mud churned up by hooves, covered in dried leaves, narrow slimy chalk tracks strewn with big flints, fallen branches, some of them very steep. You have to sit and lean far forward to stop the front wheel lifting. Some weave through trees with lots of technical obstacles, crazy roots and ditches. Quite challenging to stay on and just keep moving. We do have constructed MTB tracks and fire roads at Swinley Forest near here and Thames paths and canal paths but they are childs play in comparison. You would just keep stopping on a rigid bike or a cheapo hardtail MTB. Nothing like natural paths for a challenge. Its possible to ride 40 miles and see hardly another soul.

Al
Sounds exactly like my neck of the woods, literally

Re: Enjoying mtb'ing

19 May 2015 - 9:07am
samsbike wrote:al_yrpal wrote:Cheapo MTB forks bounce. With that Lefty I never have to lock it out, its beautifully damped and there is no bobbing uphill. You just float over 'stoppers'. So, it depends on your fork. Same goes for the rear, well adjusted that branch that would shoot from your rear tyre is just ridden over smoothly and you dont find you are suddenly stopped when it gets scudded away and you land with a bump after loosing traction. When I got the Cannondale it transformed my off road riding.

Al

Al you are the same height as me, or near enough, we really have to trade bikes sometime

No probs, after my arm heals up come down here and we'll hit the trail.
As Si says it depends on the terrain. Around here a lot is natural bridleways in forest, lots of deep mud churned up by hooves, covered in dried leaves, narrow slimy chalk tracks strewn with big flints, fallen branches, some of them very steep. You have to sit and lean far forward to stop the front wheel lifting. Some weave through trees with lots of technical obstacles, crazy roots and ditches. Quite challenging to stay on and just keep moving. We do have constructed MTB tracks and fire roads at Swinley Forest near here and Thames paths and canal paths but they are childs play in comparison. You would just keep stopping on a rigid bike or a cheapo hardtail MTB. Nothing like natural paths for a challenge. Its possible to ride 40 miles and see hardly another soul.

Al

Re: Enjoying mtb'ing

19 May 2015 - 8:46am
I think that it depends on how you ride. People who sit to climb and have a nice smooth pedalling action will find that a bike bobs minimally, whereas those who get out the saddle and give it some dog will find the fork bouncing all over the shop. Neither way is essentially right or wrong - it's just what suits you.

As for the value of suspension....I find that it's not so much whether I need it or not but how I want to ride on a particular day. For instance, if I'm being an off road tourist then I'm happy to bobble along on my touring bike, off road, at a conservative pace and get off and push if the trail gets really tough. If I'm out for some fun and thrash then the suspension means that I can go quicker and keep up with others better.

Having said that, when I moved to this location I had a full susser but soon changed to a rigid single speed as the full susser just made the doorstep trails too tame. Going further afield, the rigid SSer allows me to keep up with friends on things like Follow-The-Dog at Cannock...although it does average out the difference: they pass me on the more technical DHs and I pass them on the single track and climbs. On the other hand, if I'm off to the Berwyns, for example, I'll take gears and a suss fork as although technically the terrain isn't that much harder than Cannock (actually most of it is easier) the distance and amount of elevation gain/loss means that I can keep going in comfort a lot longer like that......typical ride of 25 miles taking six hours and getting up to 5 or 600m on exposed hills.

Horses for courses, swings and roundabouts, etc.

Re: Enjoying mtb'ing

18 May 2015 - 8:15pm
al_yrpal wrote:Cheapo MTB forks bounce. With that Lefty I never have to lock it out, its beautifully damped and there is no bobbing uphill. You just float over 'stoppers'. So, it depends on your fork. Same goes for the rear, well adjusted that branch that would shoot from your rear tyre is just ridden over smoothly and you dont find you are suddenly stopped when it gets scudded away and you land with a bump after loosing traction. When I got the Cannondale it transformed my off road riding.

Al

Al you are the same height as me, or near enough, we really have to trade bikes sometime

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