Robyn William.. Wah! Your name really gaya la..

Sam

Robyn, yr final choice is Java Fit?

Slowly upgrade to 20s, but enjoy yr bike 1st.

Sounds like a chain-rub, you can get this tuned at your bike store.

Never attempt to tune it yourself if you don't know how to do it. It will make matters worse.

Sam

Aisay man.. Four people not enough quota ka?

You want to lead 100 cyclists ka? 

For a first-time ride leader, four is a manageable group. Anything happen, you have three other guys to count on. Since most of you are beginners, this is a good opportunity to meet up, socialise and bond..

Sam

012 369 three five four seven

anyone with whatsapp, let me know i will add you ...

check out the route i mentioned prior ... we can do that route ... else this you mentioned above will be very short ...

I do a lot. Usually every Wednesday evenings. This is the route. I usually cycle by the lakeside, there's a specially made pedestrian and bicycle lane all along the route. Nice view too! 

If you ride just the island itself without crossing the bridge, it's only 11.5km.

Why are you changing your rims? Yes, that's 24 hole but you won't find it locally!   Our local bike stores or rather the main importers don't import just rims, those who brings in 20 inches are usually the whole wheelset. ( Hubs, spokes and rims, all assembled). Also not many local bike stores can lace and true a wheelset properly.

As for cost, it can run to 1.5K for a Kinetix to a few hundred for the Weinman D17  with Novatec sealed bearing hubs. If you have contacts in USA, maybe you can check out wheelsets for recumbent bikes and it's usually sized 406. There are actually many types, it just that it hard to find it locally.

I see many 20 inches rims in Taobao and very cheap too but have no confidence in ordering them. So, I rather pay more to see the product first before getting it. I paid RM450 for my Weinmann D17 with Novatecs. When I got it, the lacing seems OK but when I rode for the first time, the rims ran out of true. It seems the person who laced it winded tight on one side and loose on the other. I have to loosen every spoke and adjust all over again. So, be prepared to pay for re-truing the wheelsets. Sometimes, the dishing is out, means the rims are not centered to the bike frame. This affects the V-brakes.

If you are looking for nice wheelsets, I have posted one in the earlier comments. Johnny (MY Bike Shop)  sold 2 sets already and there's still another set left. 

Yes if you have the rims, it can easily be replaced and the old hubs reused. Disc specific rims has no machined brake track on it. SO it cannot be use on a bike with V-brakes. As for disc brake setup bikes, you can actually use both kind of rims. 

20 inch wheels, right?   If the rear gear is 11T, its enough, and if the front crank has 53 or 55T, that would be among road bikes.  But your wheels need to be the fast type as well, meaning your tyres should be the lightweight, slick, skinny type, if not, you will find it an effort to maintain a good speed on level roads.

So far only 4 responded...

Dude, before you go ape over upgrading your bicycle, try and get used to its settings.

Be "Fit" enough to ride your Java Fit and not the other way round..

You can have a 60T crank, enough gears to climb coconut tree.. Its all useless if you are outclassed by the bike..

To enjoy the bike, get in the best shape, do some training.. Go the distance..

Sam 

replied..

see post 2537