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

New: Take Part in the new April's Giveaway for a Chance to Win the Euybike S4 Pro Max ebike worth $1299


Updating a specialised allez
#1
Some advice needed if anyone can help. I have an Allez (2005ish) which runs tiagra 8spd cassette (12-25) and derailleur and a 39/52 chainset. I have sora flightdeck changers. All the above have had a bit of use and also it's quite hilly where I ride.

Was thinking of getting a 11-28 10spd shimano 105 5700 and same derailleur but does this mean I'll need a new changer as well? Even secondhand that puts the price to far more than I paid for the bike!

Thanks to all that reply!
  Reply
#2
You'll have to change the shifter as well, since 8 and 10 spd doesn't match...
Only 105, Ultegra and 105 are 10spd, Tiagra is 8 or 9 spd (depends of what year they are)
  Reply
#3
You would also need a 10 speed chain if you go to 10 speed, then this might give a problem with the chainset?

I run a Sora rear dérailleur on a 13-28 (it was a 13-26 but I swapped the two largest sprockets for 24 & 28 ones).
You can get an 8 speed 11-28 cassette but adjustment of the "B" screw may be needed.
Ride hard or ride home alone!
  Reply
#4
(02-06-2011, 10:43 AM)cyclerUK Wrote:  You would also need a 10 speed chain if you go to 10 speed, then this might give a problem with the chainset?

I run a Sora rear dérailleur on a 13-28 (it was a 13-26 but I swapped the two largest sprockets for 24 & 28 ones).
You can get an 8 speed 11-28 cassette but adjustment of the "B" screw may be needed.

I did think about another 8-spd, but with tired legs I find I need a closer ratios to keep spinning!! Maybe I should man-up though!?
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
7,718
07-12-2020, 07:59 PM
Last Post: Jesper
 
14,884
01-01-2015, 04:29 PM
Last Post: Painkiller

Forum Jump:

[-]
10 Latest Posts
1987 Tommaso Alloy lugged frame
Today 10:06 AM
Food after late training ride
Yesterday 02:48 PM
Injury Recovery
Yesterday 08:20 AM
RECOMMENDATION
04-24-2025 04:24 PM
New Member
04-24-2025 03:31 PM
2011 GT Tachyon upgrade/mod
04-24-2025 08:45 AM
Doctors are Prescribing Cycling
04-23-2025 09:50 PM
What was your first bicycle?
04-23-2025 09:17 PM
New Rider Here — Momo + Viribus = Ready ...
04-23-2025 09:15 PM
The great thing about trikes
04-23-2025 03:47 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. GirishH
24 posts
no avatar 2. SPINMAN
14 posts
no avatar 3. meamoantonio
13 posts
no avatar 4. Flowrider
12 posts
no avatar 5. Painkiller
11 posts