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Search: Posts Made By: Fentuz
Showing results 1 to 50 of 736
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Forum: Folding Bikes
04-18-24, 03:44 AM
Replies: 15
Views: 581
Posted By Fentuz

have you had a chat with CH Whites in Malmesbury?...

have you had a chat with CH Whites in Malmesbury? They could advise.
they do custom build too.

Once you re set with a frame or donor bike, you can modify most things as 1x touring/endurance bike...
Forum: Folding Bikes
04-12-24, 03:24 AM
Replies: 12
Views: 688
Posted By Fentuz

I don't think so a it was for 26"/24"/27.5". It...

I don't think so a it was for 26"/24"/27.5". It is more a question on section and load on from tyre bead to rim and then how it rolls.
For Hill climb racing, I was looking into a set of kinetix comp...
Forum: Folding Bikes
04-07-24, 01:17 PM
Replies: 44
Views: 3,581
Posted By Fentuz

yes, after 5000 k, mine were not worn out however...

yes, after 5000 k, mine were not worn out however the side wall were very cracked. May be because i run them @50 psi on 32c.
i got the same with cross king 50-584 when I run them @ 20 psi or below
Forum: Folding Bikes
04-06-24, 05:00 AM
Replies: 57
Views: 3,189
Posted By Fentuz

again, not true, dahon hammerhead and dahon dash...

again, not true, dahon hammerhead and dahon dash x20 are lighter….
Forum: Folding Bikes
04-06-24, 04:49 AM
Replies: 44
Views: 3,581
Posted By Fentuz

Once again, more rubbish from sentinel…. ...

Once again, more rubbish from sentinel….


this black x11 has been properly modified by a roady. While some parts may be older than others, it is coherent and clean.
no crap all over the...
Forum: Folding Bikes
04-06-24, 03:37 AM
Replies: 57
Views: 3,189
Posted By Fentuz

Right, after poppycock, more balderdash…. Once...

Right, after poppycock, more balderdash…. Once again, you fail to acknowledge or even consider that the people you overtook on hills may be less fit than you and, if you ride all the time as you...
Forum: Folding Bikes
04-06-24, 02:51 AM
Replies: 141
Views: 9,008
Posted By Fentuz

I spent a bit of time on the shimano doc and...

I spent a bit of time on the shimano doc and noticed that the shimano zee and saint can be fitted the slx shadow link instead of down hill allowing for extra capacity 28 to 36 so as the std works...
Forum: Folding Bikes
04-05-24, 10:50 AM
Replies: 9
Views: 314
Posted By Fentuz

Do you unscrew the rear derailleur? I was told to...

Do you unscrew the rear derailleur? I was told to undo it and tape it to the frame to avoid bending the hanger
Forum: Folding Bikes
04-05-24, 04:47 AM
Replies: 57
Views: 3,189
Posted By Fentuz

So, last year, a mate and I challenged ourselves;...

So, last year, a mate and I challenged ourselves; we had to climb that rocky hill near Wotton Under Edge - 19% to 20% with a 90deg corner and on 650B 52mm wide tyres, with 36-46 ratio, I could not...
Forum: Folding Bikes
04-05-24, 04:14 AM
Replies: 45
Views: 1,930
Posted By Fentuz

What tube did you go for? I found that bontrager...

What tube did you go for? I found that bontrager seemed to be the only one supplying 20" tybe with 48mm presta valves....

And yes, I used to run 2x9 (39/53 x 11-25) because a long lime ago, it was...
Forum: Folding Bikes
04-05-24, 03:50 AM
Replies: 141
Views: 9,008
Posted By Fentuz

It seems that "downhill" MTB groupset are ideal...

It seems that "downhill" MTB groupset are ideal with 16"/ 20" bike. I do like my ZEEsetup
Forum: Folding Bikes
04-04-24, 02:52 AM
Replies: 41
Views: 1,261
Posted By Fentuz

I was talking ago Alfine 11 with local bike shop...

I was talking ago Alfine 11 with local bike shop and mechanic did not seem to be impressed with Alfine which seemed a little harder to setup and not as good (strong) as some with fewer ratios.

I...
Forum: Cyclocross and Gravelbiking (Recreational)
04-04-24, 12:29 AM
Replies: 7
Views: 450
Posted By Fentuz

looking at xtr pedal, their q factor is 52 or...

looking at xtr pedal, their q factor is 52 or 55mm
classic m520 are 51mm
garmin rally xc200 is 53mm (i have 2 mm washers so 55)
hope pedals are 55mm
crankset brother eggbeaters (not spd) are 52...
Forum: Cyclocross and Gravelbiking (Recreational)
04-03-24, 02:02 AM
Replies: 7
Views: 450
Posted By Fentuz

The SQ lab come with a 15mm "XL" offset so if you...

The SQ lab come with a 15mm "XL" offset so if you add a 2mm washer, you will get mors than your desired 16mm

https://www.sq-lab.com/en/area-of-use/mtb/sqlab-pedals-511.html
Forum: Folding Bikes
04-03-24, 01:09 AM
Replies: 111
Views: 48,151
Posted By Fentuz

Not at all. That was peak time. An elite cyclist...

Not at all. That was peak time. An elite cyclist would be able to hold those speeds for a while. I simply peaked at those numbers for a few seconds.[/QUOTE]


Your Honor, I rest my case…
Forum: Folding Bikes
04-02-24, 02:11 PM
Replies: 111
Views: 48,151
Posted By Fentuz

i know people who race in crit and are super fit...

i know people who race in crit and are super fit and capable to produce ftps over 350w and yet, on Swork or pinarello race bike and yet, on flat in summer without wind, they do 32 to 36mph. Again...
Forum: Folding Bikes
04-02-24, 08:14 AM
Replies: 111
Views: 48,151
Posted By Fentuz

on flat??? How did you record that? In...

on flat??? How did you record that?

In theory, a tern x11 with 52T chainring and 10T cog on 28-451 tyres is geared at 30mph @97rpm and that is without taking into account wind resistance and...
Forum: Folding Bikes
04-02-24, 02:40 AM
Replies: 61
Views: 7,216
Posted By Fentuz

The hinge pivot axle of my jetstream broke...

The hinge pivot axle of my jetstream broke because, I could not help myself and kept jumping curbs etc. and after 10years, it was well out of warranty.
A subcontractor of mine did me a favor a...
Forum: Folding Bikes
04-02-24, 12:52 AM
Replies: 61
Views: 7,216
Posted By Fentuz

yes, the line is a good patch to add mechanical...

yes, the line is a good patch to add mechanical integrity but still a “add on”.

ultimately, with the given set of “design input”, easy foldability and weight were more important than rigidity...
Forum: Folding Bikes
04-02-24, 12:13 AM
Replies: 19
Views: 4,398
Posted By Fentuz

130. with a “normal chainring”, a gravel bike...

130. with a “normal chainring”, a gravel bike chain would do as chainstay are similar length
Forum: Folding Bikes
04-01-24, 01:47 PM
Replies: 61
Views: 7,216
Posted By Fentuz

10 years ago tern was known for frame cracking...

10 years ago tern was known for frame cracking due to poor weld and heat affected zone. Admittedly dahon Mu SL had similar issues but in smaller proportions.

ultimately the curved frame design...
Forum: Folding Bikes
04-01-24, 10:16 AM
Replies: 19
Views: 4,398
Posted By Fentuz

normal road bike speed. If you consider a 700c...

normal road bike speed. If you consider a 700c wheel with 33mm tyre is ~ 28” and the 406 with 35mm tyre is 20”, the ratio is 1.4 so 69T/1.4 is ~49T so it makes it pretty much the same as a 700c bike...
Forum: Folding Bikes
04-01-24, 08:45 AM
Replies: 19
Views: 4,398
Posted By Fentuz

Not long ago, i broke the derailleur hanger...

Not long ago, i broke the derailleur hanger (second one this winter) and the sora derailleur so I put a m310 which I had spare.
i found that the chain kept dropping as the wide range cassette with...
Forum: Folding Bikes
03-27-24, 04:01 AM
Replies: 144
Views: 4,742
Posted By Fentuz

No, you stated financial figures (wrong one) to...

No, you stated financial figures (wrong one) to justified quality: "You can't skimp on QUALITY. The Sram force groupset alone costs around £1000."

All I see is restricted views or deformed fact...
Forum: Folding Bikes
03-27-24, 02:55 AM
Replies: 144
Views: 4,742
Posted By Fentuz

hang on a minute, you came here proclaiming that...

hang on a minute, you came here proclaiming that your tern x11 is the best thing since sliced bread and your views seem very reduced to the advantage of 451. People came to offer different opinions...
Forum: Folding Bikes
03-27-24, 02:31 AM
Replies: 144
Views: 4,742
Posted By Fentuz

yes, that's the sort f thing I did, race on...

yes, that's the sort f thing I did, race on dry(ish) tarmac with 50profil front and 45profil rear (~100mm sidewall in both cases) however, on crappy roads of wet, I run road legal wet tyre in...
Forum: Folding Bikes
03-27-24, 02:14 AM
Replies: 144
Views: 4,742
Posted By Fentuz

I agree, I train on my Dahon minivelo which is...

I agree, I train on my Dahon minivelo which is currently geared like my gravel bike race bike. on the same loop zone 2 type thing, I will be averaging 21 to 23 kph on the minivelo and about 27kph on...
Forum: Folding Bikes
03-27-24, 01:59 AM
Replies: 144
Views: 4,742
Posted By Fentuz

nope, the crankset is ~£200, and the gx...

nope, the crankset is ~£200, and the gx derailleur and shifter is ~£250 cassette is £70

and manufacturers do not pay retail prices, they get “unpacked” components wrapped in bubble wrap.
last...
Forum: Folding Bikes
03-26-24, 07:24 AM
Replies: 144
Views: 4,742
Posted By Fentuz

I don't know about that, I commuted daily on my...

I don't know about that, I commuted daily on my Helios modded to match verge x18 from the Cotswolds (1mile from CH White) to Swindon (70K round trip) on tarmac and smooth gravel path.

On my gravel...
Forum: Folding Bikes
03-26-24, 02:25 AM
Replies: 144
Views: 4,742
Posted By Fentuz

Yes, very good explanation, i could nt be bother...

Yes, very good explanation, i could nt be bother to go in so much details :)

Until you tried on the same bike with the same weight and the same tyre, you cannot say how the same affect...
Forum: Folding Bikes
03-25-24, 01:23 PM
Replies: 144
Views: 4,742
Posted By Fentuz

i like the contact urban (well I did nt like the...

i like the contact urban (well I did nt like the reflective strip but that s cosmetic). The side wall perished with all the winter salt so put back a set of kojak because i couldn t be bother to...
Forum: Folding Bikes
03-25-24, 12:04 PM
Replies: 144
Views: 4,742
Posted By Fentuz

Oh yes and I forgot to mention that if you want...

Oh yes and I forgot to mention that if you want to go faster, TPU inner tubes like tubolitos reduce RR and the gain is noticeable however, if you get a puncture, make sure you have spare tubes...
Forum: Folding Bikes
03-25-24, 11:47 AM
Replies: 144
Views: 4,742
Posted By Fentuz

yes, but I don't seem to be able to get them...

yes, but I don't seem to be able to get them easily in the UK (at reasonable price) and my wheels take 35c max
Forum: Folding Bikes
03-25-24, 10:02 AM
Replies: 144
Views: 4,742
Posted By Fentuz

this is the same discussion as 650b or 700c. The...

this is the same discussion as 650b or 700c. The bigger the total outer diameter is the less susceptible to road bumps it is. At equal weight, the small wheel will accelerate faster, on hill climb, a...
Forum: Folding Bikes
03-20-24, 03:11 PM
Replies: 83
Views: 2,738
Posted By Fentuz

yes, it was food for thought as it might spark...

yes, it was food for thought as it might spark other ideas/solutions.
Forum: Folding Bikes
03-20-24, 03:08 PM
Replies: 83
Views: 2,738
Posted By Fentuz

Not sure, but I am about to fit a 69T chainring...

Not sure, but I am about to fit a 69T chainring with a 1x9 11-40 cassette and a "small" cage altus M310. I 'll let yo know how it goes.
Forum: Folding Bikes
03-20-24, 03:04 PM
Replies: 83
Views: 2,738
Posted By Fentuz

I can tell you that the ZEE which has a small...

I can tell you that the ZEE which has a small cage like a road sora or ultegra can deal very well with 11-36. and I believe it can do better as mine(2nd hand) had the B screw too engaged when I go it...
Forum: Folding Bikes
03-20-24, 02:51 AM
Replies: 83
Views: 2,738
Posted By Fentuz

Looking how the thread is evolving, I thought I'd...

Looking how the thread is evolving, I thought I'd add food for thoughts.

I get the 2x appeal to add range to the current 7s 11-28 cassette. During the 1st lockdown, I run my helios with 2x 7s...
Forum: Folding Bikes
03-19-24, 06:58 AM
Replies: 50
Views: 5,342
Posted By Fentuz

Compared to CX, Gravel bikes tend to be 10mm...

Compared to CX, Gravel bikes tend to be 10mm shorter on effective top tube and 10mm higher on the stack with 1 to 1.5deg extra slack on the head tube and BB tend to be 5 to 10mm lower. This allow a...
Forum: Folding Bikes
03-18-24, 08:46 AM
Replies: 38
Views: 12,673
Posted By Fentuz

Where did it crack?

Where did it crack?
Forum: Folding Bikes
03-18-24, 08:36 AM
Replies: 50
Views: 5,342
Posted By Fentuz

Like that? ...

Like that?
https://youtu.be/rqoC_WJYfMY?si=UVJ0ZB94M4S6Yku-

Note: no more ultra bit 45-622... Race king 50-584 or 520584 barzo unless it is a CX race
Forum: Folding Bikes
03-11-24, 09:47 AM
Replies: 83
Views: 2,738
Posted By Fentuz

I thought I recognized it from the French forum

I thought I recognized it from the French forum
Forum: Folding Bikes
03-11-24, 02:46 AM
Replies: 33
Views: 1,186
Posted By Fentuz

Like other, I don't think a break away bike is...

Like other, I don't think a break away bike is best. I was looking into the Ritchey outback break away to use as a vacation/long business trip option. From what I coud see, it s not much different...
Forum: Folding Bikes
03-06-24, 10:08 AM
Replies: 83
Views: 2,738
Posted By Fentuz

Again, I have used the same things and did not...

Again, I have used the same things and did not have a problem. so my point remain valid, it may not work for you but it did for me as it did for many others. if they were that bad, people would moan...
Forum: Folding Bikes
03-06-24, 03:36 AM
Replies: 12
Views: 688
Posted By Fentuz

I have referred to the schwalbe chart for many...

I have referred to the schwalbe chart for many years (not on new site thought)
https://imgv2-2-f.scribdassets.com/img/document/505501042/original/e76623813d/1705937561?v=1

I used to run the...
Forum: Folding Bikes
03-06-24, 03:21 AM
Replies: 20
Views: 1,999
Posted By Fentuz

that's good to know, I am thinking about fitting...

that's good to know, I am thinking about fitting a 56T on the helios rather than the current 48 but I would need more range like this. I was looking at Deore 10 11-46 for ~£30 instead of Tiagra 11-34
Forum: Folding Bikes
03-06-24, 02:48 AM
Replies: 83
Views: 2,738
Posted By Fentuz

hang on, as you said, you are /have been a...

hang on, as you said, you are /have been a mechanical engineer so surely you know about 1st rule of 6 sigma: "rather your Data". here, we have 1 users having issues with several designs. It is not a...
Forum: Folding Bikes
03-05-24, 03:16 AM
Replies: 83
Views: 2,738
Posted By Fentuz

Well, I did not have any issues you mentioned....

Well, I did not have any issues you mentioned. The braze-on post never rotated and when properly set (located and clamped), it did not interfere with the derailleur. Only issue I had was the lack of...
Forum: Folding Bikes
03-04-24, 07:24 AM
Replies: 20
Views: 1,999
Posted By Fentuz

I race with 160/180 in XC and CX(because of XC...

I race with 160/180 in XC and CX(because of XC setup) and yes, the dissipation is a big thing (I boiled my front brake when running 160 of steep fast descent during a XC race) and I agree about the...
Forum: Folding Bikes
03-04-24, 04:32 AM
Replies: 20
Views: 1,999
Posted By Fentuz

yes, that's why I cannot understand why dahon and...

yes, that's why I cannot understand why dahon and tern put 160discs instead of 140mm.
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