Spearfish build, techincal issues, fork steerer length etc

weeksy59

Evening guys,

Well i've stripped the Giant XTC29 frame which has now been sold on, started on the build of the spearfish.

This is where it's all gone a little wrong.

The steerer on the fork is (i think) too short. I'm running a 45mm stack height stem, with a Hope headset. (Not fitted the head doctor insert yet, still has the SFN installed). So my problem is that the steerer comes up short by 22mm. So, i've been doing a few calculations and what i realistically need is a 20mm stack height stem. A 15mm would be even better...

I'm not hugely concerned about the length/reach on it at this stage as i've no idea what the bike is like anyway hahaha.

So lads... inspire me ?

(I don't want to go down the road of selling the Fox forks and replacing with another set of Rockshox (which IMO are not as good).







Funn MZX2 MKII Light CNC Stem 2012 | Buy Online | ChainReactionCycles.com

One of these lads ?

supersonic

Without knowing the stack height of that stem, is impossible to say. Might have to call them?

I don't want to go down the road of selling the Fox forks and replacing with another set of Rockshox (which IMO are not as good).

Depends on the model really.

nicklouse

weeksy59 wrote:

Evening guys,


Funn MZX2 MKII Light CNC Stem 2012 | Buy Online | ChainReactionCycles.com

One of these lads ?

The Funn MZX2 MKII is a Marzocchi 888 designed integrated stem

it bolts the the top fork crown. so NO.

new uppers or forks.

weeksy59

New uppers or forks isn't inspiring me LOL..

18mm gap and a 45mm stem currently installed.

supersonic

Is new fork time I am afraid. Or uppers!

weeksy59

If we're straight onto

"Just get new forks mate"

How about a set of these instead of the Fox 100 (tapered 15mm) compared to these Rebas ?

http://www.merlincycles.com/bike-shop/f ... -2012.html

£269 with Merlin 10% discount

supersonic

That is a superb fork for the money. No better.

weeksy59

weeksy59

http://www.chainreactioncycles.com/Mode ... elID=47923

Ragley stubbing seems to be stack height of 30-32 depending on who measured it.... That would put my top of fork steerer 3mm below top of stem....

We'd be happy with that ?

nicklouse

but would it be above the top bolt?

weeksy59

nicklouse wrote:

but would it be above the top bolt?

Of the two stem retention bolts you mean ?

Answer is.... Errrrm Maybe... Dunno till we try really.

nicklouse

it the steerer is not above then the stem is no good.

if it is a very close call you could find a real mechanics bike workshop and get the crown race surface on the fork faced. you could also get the head tube faced. this could give you some more wriggle room. but check that the cups will seat correctly.

weeksy59

Well, i'm now the proud owner of :

Rockshox Reba RLT 29er 2012 White - 15mm Axle - Crown Lockout - Tapered Steerer

weeksy59

Apart from the fork issue, the overall build went... reasonably well.

Sadly my rear brake cable either needs routing along the top tube (which i don't fancy in all honesty) or replacing with a longer brake hose. It's about 608" too short. I could theoretically re-route using some of the CRC cable stick on guides... but, if you're going to do a job, do it properly i guess. So will get a new hose on there.

As well as ordering the forks, i've ordered the Ragley Stubbing stem, i'll try the stem, see how it fits/looks and make some decisions on the plan from there.


The gearing is sorted, the chainguide is sorted, bars sorted and even the seat is on there and funnily enough my old charge spoon was orange too lol. So not all is lost.

The Rookie

Looking at your photo's (post at 7:41pm on 29th), your 'zero stack' headset has a lot more stack than mine, I'd suggest pulling it, get the top and bottom headtube faces faced back by an mm each and get a new lower stack headset

weeksy59

The Beginner wrote:

Looking at your photo's (post at 7:41pm on 29th), your 'zero stack' headset has a lot more stack than mine, I'd suggest pulling it, get the top and bottom headtube faces faced back by an mm each and get a new lower stack headset

I never said it was Zero stack mate. Even a Zero stack (should they make it ) would only give me back about 5-6mm, with facing 1mm, giving me 9 at the very most.

The next stem will give me 13-15mm back.

Obviously the new fork ordered overcomes all the headset issues.. but then means selling on the Fox.

The Rookie

'zero stack' is the type FGS! If it's not zer stack (also known as semi integrated) what is it?

Still sounds like your sorted the expensive way.

weeksy59

The Beginner wrote:

'zero stack' is the type FGS! If it's not zer stack (also known as semi integrated) what is it?

Still sounds like your sorted the expensive way.

What way would you have done it ?

Assuming i do need the REBA forks i rekon i can sell on the Fox 32RL for £250, so my 'fix' would have only cost me £20.

Chunkers1980

Where did the fork come from?

Your head tube looks pretty short, somewhat limiting resale value.

weeksy59

Chunkers1980 wrote:

Where did the fork come from?

Your head tube looks pretty short, somewhat limiting resale value.

Forks came out of my Giant XTC. The forks also fitted a Yelli scremy nicely. I've not measured the steerer length just yet, but will do so if i need to sell them on.

weeksy59

New bars

The Rookie

weeksy59 wrote:

The Beginner wrote:

What way would you have done it ?.

As I detailed.....facing and lower stack....

weeksy59

The Beginner wrote:

weeksy59 wrote:

The Beginner wrote:

What way would you have done it ?.

As I detailed.....facing and lower stack....

honestly not convinced we'd have got enough of a difference mate.

The Rookie

Have a look at some bikes with low stacks and see what I mean.

weeksy59

Good old CRC got the part to me bright and early...

So, i rekon i'm happy with that... However i'm prepared to bow to the knowledge of the forumites.... but looks appropriate to me.

I accept i've got no spacers, therefore no room for adjustment, it's just one of them things, i'll improvise using higher/lower/longer/narrower bars i guess...

What say the masses ?

Chunkers1980

A little more gap than I'd want, but should be ok.

Still consider the facing route.

The Rookie

As long as the top of the steerer is above the centreline of the top bolt it will be fine, can't tell for sure from that angle though.....

weeksy59

The Beginner wrote:

As long as the top of the steerer is above the centreline of the top bolt it will be fine, can't tell for sure from that angle though.....

Yeah all good in that context. I'm pretty confident we're all good.

If i die and never come back from Llandegla on Sat you can point and laugh on Youtube

nicklouse

do you understand why it is important that the steerer is above the centerline of the bolt?

weeksy59

nicklouse wrote:

do you understand why it is important that the steerer is above the centerline of the bolt?

Yes mate, i'm not completely daft

nicklouse

weeksy59 wrote:

nicklouse wrote:

do you understand why it is important that the steerer is above the centerline of the bolt?

Yes mate, i'm not completely daft

good to know you are only partly daft. :P