You can do your own mythbuster by purchasing 80mm, 60/50 and 35mm to test it out.
Cheaper option, borrow from friend who has it and try it.

thinking to upgrade from claris to 105? do you think it worth it? or just get another bike with 105.. im using very old java veloce.

Just upgrade to combo Shimano 105 R7000 and don't turn back, it cost average rm1500 full grouppos. The differences between 105 and claris is huge! I've been using SORA for for decades and upgrade to 105 this month on my 10 year old aluminum frame, wow i was like flying up the hill everyday. I've tried my friend Ultegra and Dura-ace there are not much differences in pedaling performance in gear cadence ratio with 105 except Dura-ace have more buttery smooth shifting and lighter. Overall the hood grip and braking on new 105 r7000 much the same as Ultegra and Dura-ace. It felt like 105 took few genetics from Dura-ace which is why 105 R7000 came out a year later. So Shimano 105 is bang for buck...go for it.

....yes of course my new 1400g 30mm lighter with aero thin sapim spokes build wheelsets helps a lot.


Here video from GCN 105 vs duraace...which made me go 105 early this month.
https://www.youtube.com/watch?v=6si2XSCbdGQ


This post has been edited by SupermotoXL: Jan 16 2019, 08:45 AM

wow thanks man. thinking to upgrade as well but lets just wait for right time.

Hi, I just upgrade from Sora 9 speed to Shimano 105 11 speed. Yes is a huge different is worth to upgrade. But if u thinking of upgrade ur frame to Carbon frame then u must well save some money and upgrade one time go.

I didn't upgrade full set. I found RD, cassette and chain at RM300 then Shifter at RM300. so less then 1k you can upgrade from 9 speed to 11 speed... hehe

Do u need to change you short cage to long cage?

changing the cage is not an option for me
so instead i went and use a goatlink
it works the same way; and making sure the chain stays tight during sprinting too (using fast gear)

oh. so you didnt change crankset? and you use your original freehub ? can it fit 11 speed?

This post has been edited by lamda: Jan 17 2019, 10:01 AM

thanks for advice. will continue with 60mm max.

Yes i still using Sora crank, and i i had change my mavic wheel sets and the hub which able to fit 11 speed

can u share your pic of the goatlink? i have no idea of this....

how much that cost? i meant your new wheelset? im thinking to upgrade or just buy new carbon bike.

brought at secondhand around 400 then sell my old wheel around 200. so total cost of the wheelset is 200... hehe

bought it from BBS



i bought red one. pretty light


example of installation.

Mean you still using short cage and change to max 36 teeth cassette, but how about chain?

im using 32t only. its a big gain from 25t for climbing
since my area is packed with hills
the chain, so far still can maintain tension when using the smallest gear (small cog on the crank, and the biggest cog at the back)
since i'm using compact crankset, 50-32t then it'll be pretty okay for climbing

Mean u still using the same chain (11-25t). Won’t scare the tension too tight and it break?
Then I can consider to upgrade this instead of changing RD long cage + cassette + chain...

This saturday who are going to genting peres event.....

me me

guys.. just wanna check.. is it normal to not able to pedal comfortably on flat road on the highest gear (50T - 11T)? i found myself not able to hold the pedaling for more than 5 min.. and what is the normal speed on flat road for a road bike? i just tested on Kesas yesterday.. still around 26-28km/h only if I pedal slightly harder..