Full carbon forks with mudguard eyelets

For discussions about bikes and equipment.
brucelee
Posts: 290
Joined: 19 Feb 2009, 10:39am

Full carbon forks with mudguard eyelets

Post by brucelee »

Just been looking at ribble, they do a load of full carbon forks but not with mudguard eyelets - anyone give me some pointers. I'm going to put these on a surly LHT for a bit before they end up on a racing bike. I don't use low riders and LHT forks are VERY heavy (1020g). Is there general wisdom on full carbon forks on tourers I should be aware of ? I have a choice of canti or calliper brakes so that's not a problem. Must clear 700x28 with mudguards.
Cheers,
Bruce.
ChrisButch
Posts: 1189
Joined: 24 Feb 2009, 12:10pm

Re: Full carbon forks with mudguard eyelets

Post by ChrisButch »

Spa have an own-brand carbon fork which has everything you specify. It's the one they use on their Audax bikes.
User avatar
RickH
Posts: 5839
Joined: 5 Mar 2012, 6:39pm
Location: Horwich, Lancs.

Re: Full carbon forks with mudguard eyelets

Post by RickH »

Watch out for the fork length - LHT forks are 390mm axle to crown. a "racing bike" may be designed for a fork length of less than 370mm (example: the Kinesis DC21 designed for use with short drop callipers is 369mm). The wrong fork is likely to screw up the geometry and handling of one bike or the other.

Rick.
Former member of the Cult of the Polystyrene Head Carbuncle.
User avatar
CREPELLO
Posts: 5559
Joined: 29 Nov 2008, 12:55am

Re: Full carbon forks with mudguard eyelets

Post by CREPELLO »

brucelee wrote:Just been looking at ribble, they do a load of full carbon forks but not with mudguard eyelets - anyone give me some pointers.
Yes...http://www.ribblecycles.co.uk/sp/road-t ... EDAFORW200 Be warned - their oversize appearance looks very odd next to the skinny steel tubes of the LHT - IMO. I had a pair for my steel Spa Audax and had to send them back because of this :roll: . The skinnier Spa forks look fine and ride fine as well. But check rake and fork length is compatible with the LHT.
BrianP
Posts: 194
Joined: 14 Apr 2011, 9:12am

Re: Full carbon forks with mudguard eyelets

Post by BrianP »

Genesis Croix de Fer 2015 carbon fork any good?

http://www.shop.18bikes.co.uk/m14b0s543 ... 15%29-2015
keyboardmonkey
Posts: 1123
Joined: 1 Dec 2009, 5:05pm
Location: Yorkshire

Re: Full carbon forks with mudguard eyelets

Post by keyboardmonkey »

CREPELLO wrote:
brucelee wrote:Just been looking at ribble, they do a load of full carbon forks but not with mudguard eyelets - anyone give me some pointers.
Yes...http://www.ribblecycles.co.uk/sp/road-t ... EDAFORW200 ...


I'm fairly sure that model still comes with metal steerer. From the Ribble web site - "Description: Carbon blades with alloy steerer". OP wants full carbon forks.

BrianP wrote:Genesis Croix de Fer 2015 carbon fork any good?

http://www.shop.18bikes.co.uk/m14b0s543 ... 15%29-2015


"Description: Carbon fibre legs, aluminium steerer" I had a look at the Spa Cycles carbon forks and I didn't notice a clear statement that the forks were full carbon.

Brucelee - what is the reasoning behind wanting full carbon rather than forks with a metal steerer? Weight? Is the claimed weight of the Black Rain forks at 684g putting you off?
brucelee
Posts: 290
Joined: 19 Feb 2009, 10:39am

Re: Full carbon forks with mudguard eyelets

Post by brucelee »

RickH wrote:Watch out for the fork length - LHT forks are 390mm axle to crown. a "racing bike" may be designed for a fork length of less than 370mm (example: the Kinesis DC21 designed for use with short drop callipers is 369mm). The wrong fork is likely to screw up the geometry and handling of one bike or the other.
Rick.
Yea, I wasn't aware the difference was so extreme, this looks like a deal breaker since a lot of sites don't specify axle to crown. I think I'll shelve this idea and pick a fork specifically for the racing frame that gets purchased. The spa one has axle-crown of 375mm as well.
I just wonder why the LHT fork is so heavy though, all the weight is in the steerer tube, it's like a lead pipe. I just weighed a set of Dalesman forks with a long steerer tube and they come in at 790g ! I thought all the strength was needed at the crown.
keyboardmonkey wrote:Brucelee - what is the reasoning behind wanting full carbon rather than forks with a metal steerer? Weight? Is the claimed weight of the Black Rain forks at 684g putting you off?

The desire for full carbon was motivated by weight : this seems one of the cheapest ways to shave weight.
Thanks anyway.
Bruce.
User avatar
CREPELLO
Posts: 5559
Joined: 29 Nov 2008, 12:55am

Re: Full carbon forks with mudguard eyelets

Post by CREPELLO »

keyboardmonkey wrote:
CREPELLO wrote:
brucelee wrote:Just been looking at ribble, they do a load of full carbon forks but not with mudguard eyelets - anyone give me some pointers.
Yes...http://www.ribblecycles.co.uk/sp/road-t ... EDAFORW200 ...


I'm fairly sure that model still comes with metal steerer. From the Ribble web site - "Description: Carbon blades with alloy steerer". OP wants full carbon forks.
Oops - I somehow managed to miss that (someone else posted a picture of a fork with alu steerer).

Brucelee, give Condor Cycles a ring. Their Fratello audax bikes comes with a fork that would fulfill your requirements and they may sell them seperately. Don't relie on their website for info. But TBH, if you are going to buy a 'racing' frame, just by it whole, complete with forks. You'll save money and it will be the correct fork for handling. A race frame won't come with mudguard eyelets though. That would be an audax frame.

What are you trying to achieve, apart from saving weight on the LHT? Will it still be a loaded touring bike? If not, have you looked at saving weight in the wheels and tyres?

I think that your quoted 1020g for a steel fork seems to be the average these days. That is with a long and fatter 1.1/8" steerer. Is the Dalesman fork you weighed a 1.1/8" ahead steerer? That sounds like the weight of a 1" threaded steerer, which is narrower and shorter.
brucelee
Posts: 290
Joined: 19 Feb 2009, 10:39am

Re: Full carbon forks with mudguard eyelets

Post by brucelee »

CREPELLO wrote:What are you trying to achieve, apart from saving weight on the LHT? Will it still be a loaded touring bike? If not, have you looked at saving weight in the wheels and tyres?
I think that your quoted 1020g for a steel fork seems to be the average these days. That is with a long and fatter 1.1/8" steerer. Is the Dalesman fork you weighed a 1.1/8" ahead steerer? That sounds like the weight of a 1" threaded steerer, which is narrower and shorter.

I think I've gone as far as I can go with wheels and tyres - except maybe lose a few spokes off the front wheel. As I said, I still use it for lugging heavy stuff around but all the weight is over the back wheel - I don't have luggage on the front and even if I did, it would be very light by comparison.
Yes, the dalesman is a threaded steerer, but why such a massive difference in the strength (and weight) of the steerer tube on these types of fork ?
Cheers,
Bruce.
samsbike
Posts: 1178
Joined: 13 Oct 2012, 2:05pm

Re: Full carbon forks with mudguard eyelets

Post by samsbike »

Thorn do some forks as well carbon and steel so it maybe worth a gander on their site.
User avatar
531colin
Posts: 16148
Joined: 4 Dec 2009, 6:56pm
Location: North Yorkshire

Re: Full carbon forks with mudguard eyelets

Post by 531colin »

from memory, LHT is 72 deg head and 45mm offset.
If you fit forks 20mm shorter, you will steepen the head angle about a degree....full racing geometry!
Freddie
Posts: 2519
Joined: 12 Jan 2008, 12:01pm

Re: Full carbon forks with mudguard eyelets

Post by Freddie »

Pardon my forwardness, but aren't you trying to put lipstick on a pig?

The Surly is a heavyweight (probably too heavyweight for most) touring/lugging machine, putting a carbon fork on the front really isn't going to change that much and will likely mess with the geometry in the process. This is not to say the Surly is a bad frame, but it seems like it wasn't quite the thing you were after and this kind of modification is probably just good money after bad.
brucelee
Posts: 290
Joined: 19 Feb 2009, 10:39am

Re: Full carbon forks with mudguard eyelets

Post by brucelee »

531colin wrote:If you fit forks 20mm shorter, you will steepen the head angle about a degree....full racing geometry!
If your correct about this, I might go ahead and do it. Mind you that would bring the pedals even closer to the ground wouldn't it.
Freddie wrote:Pardon my forwardness, but aren't you trying to put lipstick on a pig?
The forks are going on a racer eventually, I want to try them out first. If I like them, I might get another pair for the racer or a different pair for the err... pig (That might stick). This is all experimental. I'm inclined to see the forks on the LHT as a weak point a) cos there so heavy and b) they're incredibly rigid. Are they stronger than carbon forks ? I don't know, but I'd like to.
Bruce.
User avatar
Mick F
Spambuster
Posts: 56367
Joined: 7 Jan 2007, 11:24am
Location: Tamar Valley, Cornwall

Re: Full carbon forks with mudguard eyelets

Post by Mick F »

531colin wrote:....full racing geometry!
From my memory, full racing geometry is 74deg.
My Mercian is 73deg. Are you saying that it's a full racer? :shock:
Catalogue.jpg
Mick F. Cornwall
User avatar
531colin
Posts: 16148
Joined: 4 Dec 2009, 6:56pm
Location: North Yorkshire

Re: Full carbon forks with mudguard eyelets

Post by 531colin »

Well, heres an "endurance road" with nothing steeper than 72.1 deg.....http://www.trekbikes.com/uk/en/bikes/road/endurance_race/domane/domane_5_9_compact/#....click "fit and sizing"

......search all the geometry tables you can find, and you will be no clearer!
Post Reply