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 Folding Bicycles V6, Folding bicycle discussion

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desastar
post Dec 21 2017, 08:54 PM

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QUOTE(etigge @ Dec 21 2017, 10:30 AM)
It's basically a Tern Verge frame (could be the same or even a lookalike)  with full  Litepro components and Shimano Deore mountain bike components. It model is actually the 10 speed based and if you want 20, they add in the front derailleur and extra chain ring. I don't know how they describe it as touring bike but that's not impossible to do it with the Travelo. I do know a fact hat Litepro components are usually made for weight weenies , although good , they can never stand the harshness of touring. The Deore is a proven component for touring though, it's rugged. Can't expect it to not be as it is made for mountain biking  biggrin.gif

I rather get the Lite Pro components (touring friendly ie. front/back rack) or the Biologics and get the Shimano roadbike crank and slap tougher chain rings and choose the cassette which should be 11/36T  for touring and mod it on the Speed P8. One thing the Travelo can't beat the Speed P8 is the frame which is chromoly and this is the wonder metal for touring.

If the reason is ANOTHER bike for touring while keeping the former as a ride around bike, I rather get another sportier model, maybe like a real Tern Verge and mod the Dahon as a tourer. Come to Taiping, there's still a place where you can slap in the SRAM dual drive ,3 gear rear hubs and convert your Dahon into the Dahon tourer 24 speed. Only RM1200 for the conversion.

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Hey, I had one of these Speed TR before. Ride like a big bike. Sold it to a lady and it was converted to a mid drive electric. Interesting.

desastar
post Dec 21 2017, 08:59 PM

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Christmas holidays have just started and I have a new project 😬
It won’t be too fancy, it will get the 10s shimano 105s from my old road bike.




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desastar
post Dec 22 2017, 06:04 AM

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QUOTE(etigge @ Dec 21 2017, 12:18 PM)
Very true  thumbup.gif  thumbup.gif

One thing I did find out is...........most important is frame geometry that suits your body. This is something we cannot control sadly, because bike shops here have no 7 day return policy like they do. Also, many riders buys because the bike looks nice to them (including myself  rclxm9.gif ). Only then later when I ride them, nothing seems to be right. Like the Giant I had, supposed to be lighter and nicer although the fold is terrible, but I don't fold often so it did not matter. Even putting in better and proven group set didn't improve the riding. But from experience................ I have to say this.

It is the bike's frame geometry. If it is right, it is RIGHT  rclxm9.gif  I say this because I started with Exitway mtb. Bought that because of the XT components. To buy separately, Fox's fork, XT grouppo is already the price of Exitway complete! So, to start off, I got that and ride. I then changed to Santa Cruz Chameleon paying 2K for a used frame. Moved all the components over and I now have a  8K mtb. Then it hits me.........the ride was no better than the Exitway, but subconciously I wanted a branded one so I ignore it. Then I got hold of a used Giant full sus and it was wonderful. The geometry was good for me. It was only RM650 for the frame but it was really fun to ride. Sold off the Santa Cruz frame and had money to spare.

So, when I went back to folding bikes, I stayed loyal to Giant and got the Expressway. No matter how I mod or improve the components, I did not get the feel of the Dahon Speed that I rode formerly. So, I decided to go back to Dahon and got myself the Bickerton Junction frame. I have no components left because to get rid of the Giant Expressway, I had to sell off everything or no go!

Then came Desastar's Birdy frame............ tongue.gif  Now I am giving that a try. So, my Dahon frame is for sale. Hard to sell just the frame though, so I am making it into an 8 speed basic unit to sell. Any takers?

Point is........................ geometry is really important for ride comfort. There's a lot of difference between a well researched bike brand and normal brands. Look carefully, brands like Dahons, Terns and the like and even Birdy for that matter. It's expensive but the components really sucks! BUT for normal brands, the frame OK-lah but the components are great! But for newbies, they generally go for this. Many won't know the difference until they actually ride on one and by that I mean really rides like 30 km to 50 km on a weekend. So, more experienced riders will appreciate frame geometry. Maybe the Birdy might not suit me, who knows yah !  tongue.gif
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Ideally take measurements from your most comfortable bike and try and replicate them on your new bike. Easier said than done at times for foldies. Most are one size fits all, so only thing you can adjust is the seat, maybe the handlebar stem.
Only Bike Friday is made to measure, but that is the case if you buy new. So far I found the Moulton and Birdy having very long reach. The Moulton, I had to both shorten the stem and use zero setback seatpost. The Birdy I had to reverse the setback seatpost to bring myself slightly forward. This is probably why Birdy has so many different style of handlebar posts. Funny enough none of these bike gave me a back ache even before these adjustments. On the other hand my Surly touring bike gave me a back ache until I lifted the stem a little even though the reach was identical to the other bikes.
The type of saddle used will also affect how you set up the bike. I find a Brooks B17 saddle is more suited to a more upright style of riding, so may not suit a more agressive style, etc etc.

desastar
post Dec 22 2017, 06:13 AM

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QUOTE(dilgoh @ Dec 21 2017, 10:33 AM)
Thanks for the write up! Much appreciated.

I biked from Pittsburgh to DC and 8 speed works for that trip. Still thinking about upgrading the speed. I'll think about it for a bit more. No plans to really tour now. Maybe short trips like Osaka to Kyoto, etc and Busan to Seoul. I think current set up works for trips like these.

How long will the conversion take?  Just in case I decided to go ahead and I'll have to make the trip.
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I've had three bikes with the Sram dual drive and I have to say I love the setup. Adds a bit of weight but the shifting is quick and responsive, sometimes you merely have to use the hub gears in stop start riding. You can play around with different chainring size and cassette to achieve the overall ratios to suit you, ie overall higher or lower gears, all 27 of them!


desastar
post Dec 22 2017, 04:04 PM

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QUOTE(KenC @ Dec 22 2017, 01:43 PM)
Nice sikal Jumaat. You got it fitted to your body geometry?
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Bought second hand, so got to make it work....
desastar
post Dec 22 2017, 04:05 PM

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QUOTE(KenC @ Dec 22 2017, 01:23 PM)
Ass pain means you didn't ride enuf la. Don't blame the saddle...
Now that I "broke-in" my rear end, any saddles are same.
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Don't be jealous, I've got a more delicate ass than yours ok?
desastar
post Dec 22 2017, 04:20 PM

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Spent the day putting the bike together. Still got to fine tune it, not happy with how the front derailleur is shifting.
Certainly feels a bit lighter on its feet than the Moulton. Currently sitting at around 10kgs.



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desastar
post Dec 22 2017, 08:36 PM

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QUOTE(gck @ Dec 22 2017, 04:25 PM)
https://item.taobao.com/item.htm?spm=a230r....ucket=17#detail

i saw this bike looks like bike jumaat copy..
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All of a sudden I realised what you guys mean. I forgot what "jumaat" meant!

Anyway the chinese copy is a pretty bad copy cry.gif

This I'd like to see.... For that price, why would you buy a copy??






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desastar
post Dec 23 2017, 06:35 PM

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I sold my stainless steel one recently, sad but no room in my life for it.

Pretty bike!



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desastar
post Jan 10 2018, 08:14 PM

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This is my dog’s Brompton :-)

He is nearly 16, so on the days he can’t walk, I’ll take him in his bike!




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desastar
post Jan 11 2018, 08:02 PM

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QUOTE(gck @ Jan 11 2018, 10:04 AM)
respect la...your dog also got brompton. i am human yet struggled so hard to get one.
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That's what we have to do for our kids biggrin.gif B is the only bike I can attach a box like that, which is very useful.


desastar
post Jan 13 2018, 09:55 AM

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Folding bike parts

I’m clearing out my parts bin and have the following for sale.

1. New set of Schwalbe Marathons 16ā€ 35-349
2. New set of Schwalbe Marathon Supreme 20ā€ 42-406
3. One Schwalbe Big Apple 20ā€ 50-406 like new
4. Used Ultegra 6600 brake calipers, excellent condition.
5. Used FSA Gossamer crankset with B.B. 53/39 rings. Excellent condition, very smooth bearings. ***SOLD***
6. Used Ultegra FD 6600, good condition.
7. New Mavic Wintech FS wireless bike computer.
8. Used Ultegra 6600 crankset 53/39 rings. Beautiful condition, hard to find in silver.
9. New Avid bull bar brake levers, black or white.

Interested, PM me. Go look up prices and make me an offer. Pls remember I’m not giving away ok? 🤣
Can send pics.

This post has been edited by desastar: Jan 13 2018, 01:00 PM
desastar
post Jan 14 2018, 04:05 PM

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QUOTE(etigge @ Jan 14 2018, 12:18 PM)
I want to concentrate on one project......the Birdy now and I am giving up on the Dahon project. Anybody wants to take over ?  rclxms.gif

Here's what have been done so far........

The frame, a Dahon Route has been painted green with an eco theme. The fork has just arrived from Taobao and headset installed. Needs some modifications but done. Painting will be done in the same color as the frame.
The handle bar post )adjustable height) is assembled.
The Biologic seatpost with pump ( a tad heavy (700 gm) as it come with a mini foot pump)
Magnets for the fold hold is assembled.
Tern's original RD adapter (the frame initially was designed for Neos RD)
The FD adapter is also in place. (this adpater is the best as the angle of the FD can be adjusted apart from the height , off course) . This is important nowadays as the FD cages of the current  are small.

Here's the extra. I do have a 7 speed wheelset but I got a 9 speed SRAM X7 shifters with an X7 RD so I am in a dilemma to whether put in the 7 speed  setup or go ahead with the 9 speed x 2 setup.  If I go for the latter, I need to go for another wheelset which I am a bit reluctant as I want to go for the Birdy  rclxub.gif As for brakes, I will throw in a new set of Avid SD3 calipers with FR5 levers. I have a cheapo saddle if you want.

So, for those interested to take over, you need to get a new wheelset, a 2 chainring crank (I have a few old good chains, I think  hmm.gif)  , a handlebar (80) and cables. I say, you need to spend another 800 apart from the initial project. I can part with my project for 1200 (quite worthwhile actually, in total you get an 18 speed Dahon for 2K. 75% are new parts. Don't worry about assembling charges, I can do that for you.

Please note though, a new Dahon Route with 7 speed setup is now selling for 1.6K  doh.gif  If you want a same setup, I can let you have the wheelset FREE with tires and inner tubes. I take back the FD adapter, the SRAM shifters and RD, the RD adapter  and I can complete the bike with 7 speed for 1.2K. You still have the Biologic seatpost though. I will get a Shimano Tourney RD to complement the setup. Still a bargain if you ask me, the orders from Taobao consisting of the fork, Biologic seat post, magnet, handlebar post is already almost 500. Add in the Avid brake set another 110, local seller , a handlebar and grips plus free wheelset etc, I am actually giving you the frame and painting for FREE.

PM me if you want to take over.
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Sifu, what are you planning to use for the Birdy, 18ā€ or 20ā€ wheels? Not clear in your post, are you missing parts for the Birdy? I may have what you need?


desastar
post Jan 14 2018, 07:17 PM

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QUOTE(etigge @ Jan 14 2018, 06:21 PM)
I am going for 20 inch. The front fork is for 20 inch, already being sent as you know. Already got the V-brakes set. Haven't decided on the groupset, waiting to see if any buyer wants the Dahon with or without the SRAM X7. What else  hmm.gif  ? I think almost have everything that can be found here. Really interested in the other Birdy though, trying to sell off the mtb but no buyer till now.  rclxub.gif
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Oh.... I've just sold the other Birdy......

My Birdy stage of life has now passed smile.gif Happy to have experienced it. Still got a few parts lying around.
My Moulton stage of life has most probably passed as well. I can't justify the price of the SST or Jubilee.....
My Brompton stage will pass when my dog passes .... I hope it will be a long time away ....
That leaves Bike Friday.......

I've just picked up a Lynskey road bike as a project, so now collecting parts for it. Once I've finished with it, it will most probably be the same price as a Brompton, and this is titanium and Ultegra bike. Goes to show how expensive the Bs are!
desastar
post Jan 19 2018, 08:32 PM

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QUOTE(KenC @ Jan 18 2018, 07:20 PM)
Bike Friday pakiT
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That's more expensive than the Brompton I think! If Dilgoh want a more price-friendly folding bike that packs small, choices are limited.
desastar
post Jan 26 2018, 10:58 AM

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QUOTE(gck @ Jan 26 2018, 10:06 AM)
for me the perfect gear for folding would be 52t front and 36t behind. if got double crank that would be good and perfect.

but in terms of good idea, my tern p24h would be very good. 44t front behond 11-32t, plus internal hub gear that can get really low ratio.

however implementation of the IHG is half hearted i would say, coming from the rear IGH gear cable routing design.

if they focus on it more, it would be damn fine.
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Since you have a p24 and running a 44t front plus a 32t rear, no wonder you are not missing the lower gears that others may be chasing for their foldies. Im running a 54t front on my Sram dual-drive and it is still low.

What's wrong with the IHG design? How else can the cable be located when the movement of the hub is horizontal? As it is, the cable or chain is already pulling at 90 degrees. Half-hearted? Lol
desastar
post Jan 26 2018, 11:08 AM

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My two previous Birdys, one was a touring one with dual drive, beautiful to ride but a little heavy, the other 9 speed was light and enough gears for most conditions. If you went 1x11, it will still work but with lots for gear changes up and down and on the extremes, there will be a lot more stress on the drivetrain.
desastar
post Jan 30 2018, 12:57 PM

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QUOTE(KenC @ Jan 30 2018, 02:30 AM)
I over slept… 2 days didn't sleep… This is one audax I am so confident to complete within COT… damn…
Too many hobbies liao…
No matter, there's always another brevet…
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Aiyah, pity I wasn’t in the country, otherwise piece of cake lah!!

Hahaha!

Sitting in aircond room drinking coffee, typing this...

šŸ˜…šŸ˜…šŸ˜…
desastar
post Feb 1 2018, 07:50 PM

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QUOTE(etigge @ Feb 1 2018, 01:24 PM)
There's another way to shorten the cage. You can actually get a shorter cage RD and then add a goat's link. But the newer generation Shimano RDs actually have a goat's link attached. Anyway, those near settings, we don't use them often, only when we trudge uphill and even that, the speed might be only 6 km/h .  tongue.gif  So, there's no danger of hitting the cage.
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11-42t? Wow!
I agree that when you are on that gear, you will be crawling, so the chances of hitting anything would be slim. Only thing to watch for us when fitting wider tyres as the RD cage could rub the side of the tyre.
desastar
post Feb 4 2018, 09:41 PM

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Sorry for my ignorance, but measuring your heart rate does not prevent you from getting a heart attack, if your heart has an underlying issue?
If so, your maximum heart rate should be different to someone of the same age but with a healthy heart. So, how do you know what this number is for you?

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