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 to Win the Kazam Buddi 20" Aluminum Trailer Bike

Upgrading Sora Components
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.
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!
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.

Possibly Related Threads...
Last Post
08-28-2009, 10:13 AM
Last Post: Joe_W

Forum Jump:

10 Latest Posts
How to keep your bicycle safe?
Today 03:20 PM
1998 Cannondale H300 Hybrid
Today 03:16 PM
1994 Trek 730
Today 03:15 PM
Would you use WD-40 for cleaning and/or ...
Today 03:14 PM
Freehub pawls or ratchet : Grease or oil...
Today 03:07 PM
Community Discussion Cycling Myths
Today 03:01 PM
Sora, shift gear cable stuck (wrongly in...
Today 12:12 PM
Man on e-bicycle, Fire, pregnant woman!
Today 09:15 AM
Failure to stop at stop sign means $500 ...
Today 09:11 AM
The HELMET Thread
Today 09:09 AM

Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

Top 5 Posters This Month
no avatar 1. Jesper
31 posts
no avatar 2. Flowrider
22 posts
no avatar 3. meamoantonio
21 posts
no avatar 4. GirishH
18 posts
no avatar 5. enkei
16 posts