Hello everyone,

the last couple of months i was thinking to convert my Mongoose Crossway 450 from 2006 https://images.buzzillions.com/images...171684_raw.jpg into a single speed. i just need advice on if it's worth it, or if i shall look for better options?

i'm driving this bike for quite some time now (since 3 years actually) and i've had frequent problems with the shifting and the brakes. the front and back derailer were always displacing themselves, as did the brakes. i think the shifting will break soon anyways. some of the parts are really worn out, and so far i din't think it was worth replacing them.

I've been a courier ever since i got the bike. it offered a nice experience for novices. but over time i got better and more conditioned and as it is now, it just doesnt cut it anymore. it's way too hard to drive fast with it over a longer period of time. i'm also fed up repairing the shifting and brakes so often.

So my question is: is it worth it to get rid of everything except the frame, or should i keep some parts like the bar and rims and tires and replace the rest? Or should i buy a new bike? or should i look out for a good frame and buy the rest one by one?

As it stands now, it weighs about 18 kg. everything made from aloy.

thanks a lot in advance.

sincerely,
phil

Yes you can convert it. However, just because you can doesn't mean you should. Just get a new bike.

In b4 Kilo TT.

And with that, Kilo TT.

thanks for the replies so far. i live in munich. does anyone know a reseller /retailer that sells those, or just the frames (also the 2008 Cro Mo Steel Old School frame, which is the same aas the TT) in europe? i cant find any seller that ships to europe or sells those in europe.

or maybe a few other recommendations for frames? i read about IRO Angus or Mark V. any other?

SE Lager and Retrogression Excel are the ones that pop into my head immediately. I'm not familiar with international shipping though. Sorry.

FYI: If you wanted to convert your bike, you'd need the following -

A wheel with even dishing with a hub threaded for a freewheel and an axle long enough to fit your frame.
A freewheel
A chain tensioner (the rear derailleur will work as long as you can keep it shifted in one spot)
A single speed crankset (middle ring would probably line up if you -really- wanted to keep the same crankset)
A new bottom bracket to fit said crankset.
A new chain

So yeah, you can probably pick up a low-end single speed cheaper.

Not necessarily.

You can get a singlespeed cassette conversion for around $40. They pretty much all come with spacers so the rear wheel doesn't need to be redished or have freewheel threading. Most kits come with a chain tensioner too. The crankset should be fine if he just takes off a chainring and gets shorter chainring bolts. You probably would want a new chain though since most of the ss kits are probably 1/8".

Example of said kit: https://www.performancebike.com/bikes..._1031512_-1___

I'm not familiar with which of these kits are good or will fit your cassette though.

like 1% of all conversions go through this much trouble.

well, i chose to get a new frame or bike. the retrogression is fantastic, but unfortunatly not available at 62. the ones i could get are the Mark V or Angus by IRO. but no price for them atm. looks like the team went on holidays.

more suggestions are still welcome. anything between 200 and 300$

kind regards
phil

found a website in europe that sells plenty of frames and other parts: https://shop.goldsprint.de/index.php?...38846060bf61f1
can someone tell me if there are good frames for around 200-260 €?

i also found this frame here. can i get some opinions for this particular frame, please? https://www.cnc-bike.de/product_info.php?products_id=11376

It uses the same dropouts found on the Leader 722TS frame (which I happen to think is awesome) and from the specs, it doesn't seem bad, especially for the price.

On a related note: https://shop.goldsprint.de/product_in...eel-pista.html

Looks like it's available in 61cm.

so is there actually a huge difference between those two? the leader 722ts and this one https://www.cnc-bike.de/product_info....ducts_id=11376

well at least it was 300 euros. not sure how that reflects the true value, but maybe they are similiar quality wise?

i'm not very familiar with frames really. what's the better deal? the 722 also has a fork. the cheaper one for 148 euros does not. still worth it though?

thanks in advance

In the cheaper ones description it says 1" Steuerrohr, if that translates to 1" steerer just make sure you get a 1" fork and headset

That cnc frame seems to a pretty good deal and 55 euro for the fork is not bad either.Overall that site has pretty decent prices.

well, thing is, there is no geo chart, so i'm nost sure if it meets the standard criteria at least.