Trek 7.2 Pedals Don't Turn Gears
03-18-21, 05:27 PM
#1
Newbie
Thread Starter
Join Date: Mar 2021
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Trek 7.2 Pedals Don't Turn Gears
Occasionally when I am riding the pedals keep going but the chain stops working as in bike quits moving. Any idea what can be causing this? I've had the bike tuned up twice in recent years and it works for a while and then back to this.
TIA!
TIA!
03-18-21, 08:16 PM
#2
Senior Member
Join Date: Nov 2009
Location: Broad Brook CT
Posts: 549
Bikes: jamis 2002 komodo, univega aplina uno, miele toscana 300, 1972 puch brigadier, Marin Sausalito
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
Likes: 0
Liked 17 Times
in
12 Posts
Cassette hub pawls not engaging?
03-19-21, 06:47 AM
#3
Newbie
Thread Starter
Join Date: Mar 2021
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Lol, the only part that I understand is "not engaging" but that certainly sounds like a possibility. Is there a way to perform a DIY fix?
03-19-21, 07:00 AM
#4
Senior Member
Join Date: Mar 2008
Posts: 8,688
Mentioned: 46 Post(s)
Tagged: 0 Thread(s)
Quoted: 1074 Post(s)
Liked 295 Times
in
222 Posts
The pawls are important parts of the ratchet system that makes up the one-way Clutch which allows the rear wheel to alternate between driving and coasting.
Depends on your skills, determination and tool access.
It’s possible to do what’s called a ”freewheel/freehub flush” which often allows the pawls to work as intended again.
But for freehubs, it does require some tools and will create a bit of a mess.
Depends on your skills, determination and tool access.
It’s possible to do what’s called a ”freewheel/freehub flush” which often allows the pawls to work as intended again.
But for freehubs, it does require some tools and will create a bit of a mess.
03-20-21, 04:25 AM
#5
Senior Member
Join Date: Nov 2009
Location: Broad Brook CT
Posts: 549
Bikes: jamis 2002 komodo, univega aplina uno, miele toscana 300, 1972 puch brigadier, Marin Sausalito
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
Likes: 0
Liked 17 Times
in
12 Posts
do search on the park tool site or youtube.
Likes For dr1445:
