freddofrog
Likes Dirt
The megarange certainly makes a difference but it's not panacea. If hill is too steep, my son still walks it. I actually found a used one for $20 on gumtree. The extra large gear does take up extra chain but I didn't need to add in any links so hopefully you should be fine. You will need a special tool to remove the cassette. Youtube how to remove a bike cassette or get LBS to do it.Well the boy is approx 135cm in height, so I think he is not quite tall enough for a S which is what I would prefer for longevity's sake, so I think I will keep him on his old bike a modify it slightly, whilst keeping my eye out for a good second handy.
I have located a 400mm seat pole for $20, only looking for another 50mm compared to his existing and that will leave 100mm in the frame, at his weight I reckon he should be ok however frame damage from loading it up too much is a valid point, I will make sure we keep an eye on it when we wash the bike.
I like the idea of that megarange cassette, that low gear is what he needs for the steep uphills, happy to do the research on it to determine suitability however if there are any tips or pitfalls to look out for I would appreciate the assistance.
The bike has the twisty grip for the gear changes, this looks like a PIA to me to use, but I guess I am spoilt with my bike. I would like to hear some views on whether I should consider getting a more conventional shifter as I am finding that being able to grab the right gear in an instant can make all the dif.
Sorry for the barrage of questions, hopefully there are other dad's out there that are reading this and may benefit from the knowledge being shared. I think getting out there with your kids is the best way you can fight the advances of the electrickery that steathfully rob us of time and embiggen our waistlines.
There are some very high end twist grips around so don't knock them. My son has trigger shift and his left thumb isn't strong enough yet to operate them, weird. So in his case twist shift, as least for the front derailleur would be better.
If he has disc brakes how about upgrading his fork. That should keep him happy for quite a while. If the stem is 1 1/8", an old cheap 26" air sprung fork will only be around $50. Then just use his 24" wheels. If he's got v-brakes, you'll also need a 26" wheel so the v-brakes line up to the rim. Doable but getting messy.