Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the June Giveaway for a brand new Merida Matts 6.5 bicycle


Upgrading Sora Components
#1
Im a newbie to biking and picked up a used Giant OCR3 (2005) for next to nothing. The bike is in pretty good shape (needs a tune-up). My question is if I wanted to upgrade the Sora 8 speed components that are stock, could I upgrade to a 105 set? Anything special I would need besides the group? Thanks for the info.
  Reply
#2
Overall there is no reason why you can't upgrade to 105 as long the costs suit?
You have to careful with upgrades as it may cost more than a new bike complete with your favoured group.
I would presume you know that 105 is now 10 speed.
A new groupset will fit with no problems. You can keep the same wheels as the cassette will be a straight swap. You will need new cables unless these are included.
You will need a new bottom bracket as the chainset is a different mounting type and a new chain. Again may be included?
New bar tape will be required when fitting the new cables for the new STI.
Ride hard or ride home alone!
  Reply
#3
Try to get last year's 105, the difference to this year is not that big. The important upgrade will happen later this year, when the shifter cables will be routed under the handlebar tape. You can also try to get last year's Ultegra, the price difference should not be that great.
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
25,414
08-28-2009, 10:13 AM
Last Post: Joe_W

Forum Jump:

[-]
10 Latest Posts
Vintage Road Bike Restoration HELP
Today 09:21 AM
Holes in my road tires
Today 09:00 AM
Merida Matts 6.5 Bicycle | June 2020
Today 07:29 AM
Clunk noise from front cogs
Today 06:14 AM
Hello from south west Florida :)
Today 12:17 AM
1974 Raleigh Sports 3 Restoration Tips ...
Yesterday 11:43 PM
Downtube Shifters on 1991 Miyata 721
Yesterday 08:58 PM
Rust on the handlebar
Yesterday 04:59 PM
Help me identify my vintage Bridgestone ...
Yesterday 04:05 PM
Just got my bike fixed up, looking for a...
Yesterday 08:58 AM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
29 posts
no avatar 2. CharleyFarley
18 posts
no avatar 3. Painkiller
16 posts
no avatar 4. Joe_W
12 posts
no avatar 5. Sagan97
9 posts