XC bike weights

mfereborn

Ok so long story short i've bought a new hardtail frame which weighs very little from my experience (1.8-2kg), for £70 i don't think it was too bad.

What im wanting to know though is roughly what a full build COULD and likely WOULD weigh for a frame of a similar weight.

I've got a fairly unlimited budget but ideally i'd like to keep the build under 10kilo.

furthurmore, what are the lightest full builds your likely to find for a 100mm xc bike?

I know this is a little vague but im trying to point myself in the right direction.

The Northern Monkey

what frame is it?

mfereborn

its a pinnacle evolution 2.0

The Northern Monkey

nice frame
(sorry i'm not helping with your Q though )

If your budget is limitless, why not go for a full XTR package?

thedirge

unlimited budget and spent £70 on the frame? You sure your not looking at more of a budget build with cheap light components?

toasty

Limitless budget? Awesome. First things first, you can save an entire 1 kilogram off the frame :P

http://www.rutlandcycling.com/11398/Scott-Scale-10-Frame.html

For that weight you'll need XTR/XT/X9 through out, a ~1500-1700g wheelset which will be about £300-£500 and some light finishing kit, be that Easton, Smica, Truvativ etc. Another £150-£200 maybe.

A light fork, take a Rockshox Sid for example, can be picked up for £330-£500ish depending which model you go for. You can get lighter but it'll depend a lot on your weight.

Tyres aren't too bad, a set of 2.2" Race Kings or 2.25" Ralphs with light tubes is sub 600g per end for £70. You can go sub 500g but it'll be about as much fun as riding a road bike through the woods.

Brakes are an awkward one, cheap £100 discs are about 1 kilo. Lighter discs go down to about 600g at the lightest end for about £400-600, Magura Marta SLs or Formula R1s. Something like Elixirs would probably be a middle ground for about £175 or so.

22lbs isn't as easy to hit as you think, my carbon Zaskar was 23lbs when it had lighter tyres on. It's 24lbs now, losing that last pound would have meant swapping brakes, rotors and potentially wheels.

mfereborn

The frame appears to be a quality product, i got it cheap on the off chance that it came up on ebay. The frames arn't sold individually so it has come from a bike bought purely for parts. Although i admit it isnt exactly top of the range.

The standard spec of the bike from pinnacle is also very respectable but could use improvement, which is what i am to do.

I'll have a look at the XTR package, although when i say limitless i have an idea in my head of roughly how much id like to spend on particular parts. i.e forks at £450 MAX (New or 2nd hand)

toasty

I personally don't think the frame is worth kitting up that far :?

1.8-2.0kg isn't amazingly light for an XC frame. Even something like a Merlin Malt 4 would be quite a bit lighter. My 6 year old 21" Stumpjumper I commute on has a lighter frame :? Claimed weight I know but, Merlin Malt 2 frame for £140 new?

Was that weight completely bare just out of interest or did it include headset?

mfereborn

Looks like i may have to reconsider my plan of action!

Dave Loasby

look at the spec of scotts 'scale ltd' it'll give you an idea on what kit you'll need to make it light!! 8.55kg for the scott. but its carbon framed. will still give a guide to lightweight components tho.
one thing i will say tho is i find it hard to keep the front end down on my 'old' elite racing, i swapped the crappy froks and changed the bars for lighter ones, and i now think the front is too light.
lightest isn't always best IMO.
reliability and comfort should come first on xc.

mfereborn

I think what i might do is simply forget the custom build plan and go for a factory built bike and customise that where i feel neccesary. the bikes aimed to get me into XC racing/endurance events so perhaps a better baseline will stand me in good stead having come from DH.

toasty

Building up bikes from scratch is usually a rip off, big companies buy in OEM bits at much cheaper rates. For about £1000 you can buy something far better than you could spec yourself for £1000.

Take theBoardman Pro for example. Even at cheapo internet prices, £300 of fork, £200 of brakes, £115 chainset, £130 rear mech, £50 shifters, decent lightweight Ritchey finishing kit and wheelset, titanium railed saddle and I've not even mentioned the frame.

If I wanted a really solid base to build up from I'd get a Scale 35:

http://www.evanscycles.com/products/scott/scale-35-2009-mountain-bike-ec016235

Not sure how true the quoted weight is, fantasticly light frame though which normally goes for about £1100-£1200 alone. The components are easily worth another £600 or so as well.

Dave Loasby

Be aware that OEM isn't always the same product as aftermarket !!!!!!!!!!
but i agree there are some great built buys around.

what about trying to source a used groupset, reasonable wheels, bars stem ect ect
then when you know for sure xc is for you, sell the build and buy a better built ride.

i have just built a roadie using mostly D'ace and its not cost me loads just because i waited for the right priced parts.

toasty

True, half the bargains you see floating around the net are OEM as well though, much like the Rebas I quoted for £300. They're OEM, much like the ones on the Boardman would have been.

Full RRP models are about £500 odd and the difference is normally something minor which doesn't affect functionality.

Northwind

Not really all that light, as's been said, my Soul's no featherweight (steel, and built for a 130mm fork) but it's under 2kg. My Scandal came in at about 1650g and they're pretty cheap.

allthegearnoidea

one of the guys i ride with got some Scandium rimmed wheels on cycle king hubs from japan, wheelset came in at 1360grams! quite a saving really! (£300ish)
also if you have money to burn as such, then seek out some Spinner aeris Pro's 2.3lb iirc 100mm fork,
neither will take drops etc that well but are very light weight xc orientated,

agreed that you can get a good bike around that weight for a resonable coin but they dont always have the pride/soul in them like ones you build up!!

is also quite nice what Bargains do turn up on ebay every now and again!

have anose on poshbikes.com for some uber light gear!

toasty

I wonder whether those are anything like the set Superstar are selling at the mo on Scandium rims.

http://superstar.tibolts.co.uk/product_info.php?products_id=193

I'm not a fan of silly light wheels unfortunately. I'd want to know they're stiff, which I'm not too convinced of at that extreme. :?

allthegearnoidea

yeah there is a significant degree of flex in them! but they were very fast rolling! i think there does become a time when the bike becomes a shelf queen due to the weight saving on the vital parts!!!

they do look very similar!

toasty

Yeah, you do see some weight weenies bikes which don't look overly practical. Tiny Maxxis Maxlite 310 tyres run tubeless, flexy wheels, old 28mm Sids, V brakes, solid carbon saddle, narrow bars.

Can't be much fun.

I think I'd go faster on my Meta than the above I still lap faster on it than I am on my Zaskar bizarrely, weight definitely isn't everything. It's just the most obvious way of measuring the quality of an XC bike unfortunately.

mfereborn

Well as you gusy persuaded me i'm looking at full bikes which i can make my own, currently im look at scott's, focus's and a few other manufacturers. I was going to go full suspension as i live quite near the lakes but i reckon i can get away with a quality hard tail

Dave Loasby

see if you can find a demo day somewhere close to you.
take id and i belive credit card and you can usually go for a decent ride on many steeds
i personally can't get comfy on the few sussy's i have tried but i'm from a road background and tall, i found the ones i tried too short. Thats my preference tho.
have a search for demo days and go have some trial rides, see what you like, what equipment you prefer ect ect.

Dave