Questions tagged [belt-drive]
Belt-drive bikes use a reinforced toothed polymer belt in place of a chain. Belt-drives are paired with a single speed or internally-geared rear hub.
68
questions
5
votes
0
answers
85
views
Gates belt drive front sprocket slowly being eaten
The front sprocket of my Gates belt drive bike is being slowly being eaten away by the belt. This leaves a layer of grey gunk all over the back half of the bike and the belt. I've checked the tension ...
- 151
2
votes
1
answer
112
views
Moving beltline for Rohloff conversion
After my Shimano Nexus 8 IGH broke prematurely, I've been thinking of converting to a Rohloff, to salvage a mostly new bike (Cube Travel Pro).
The Shimano Nexus 8 runs with a beltline (chainline for ...
- 193
5
votes
1
answer
76
views
How bad is an internal bottom bracket with a body that is 2mm longer than the orignal BB
My belt drive bicycle came with a Shimano internal bottom bracket. Shimano BB UN300, 127 mm length, 68 mm width, square taper. Below a picture. On the part is written
BB UN300
68 UJ
BC137x24D-EL
I ...
- 641
2
votes
1
answer
63
views
Is the Shimano Bottom Bracket UN300 D-EL 127mm or 127.5mm?
I have this bottom bracket on my belt drive bicycle.
Shimano UN300 68 UJ BC137x24 D-EL
The person who sold me the bike said the BB's length is 127mm, width 68mm, and square type. (I cannot get hold ...
- 641
4
votes
1
answer
121
views
How to replace internal BB with external BB on belt drive bike?
My Rohloff touring bike has an internal bottom bracket (BB). I would like to replace this with an external BB.
Current components
Front Sprocket: Gates Carbon Drive, CDX, 4 bolt 104mm BCD, 50 teeth
...
- 641
1
vote
0
answers
73
views
Wrong beltline with Gates S550 on Cannondale BadBoy
I need to rebuild the drivetrain on a secondhand BadBoy 1 with 8-speed Alfine and Gates belt I got last year. To move house I had to disassemble the crankset because the pedals had seized, and the ...
- 111
0
votes
2
answers
87
views
Are there compatible longer cranks available for Gates CDX CenterTrack (5-bolt)?
I've just purchased a Cube Editor bike that uses the Gates CDX drivetrain. I was in between sizes and decided to go with the smaller one, but it looks like I may have made the wrong choice.
I'm using ...
- 103
1
vote
1
answer
69
views
Is cog ratio the only relevant factor
I’m planning on changing my drive from chain to Gates belt drive.
My current drive is 30t front and rear giving 1:1
The available Gates sprockets for me are practically 32T front/rear.
Instinctively I ...
- 6,201
1
vote
1
answer
296
views
Advice on switching from a Continental belt drive to a Gates one
For context this bike is fitted with a Continental CDS drive belt, but the belt broken and as far as I can tell Continental stopped producing these belts so I can't get a replacement and they're also ...
- 229
8
votes
3
answers
520
views
Replacing crank/spider on belt drive bike (stripped pedal hole)
Edit: The bike is in a place with good mechanics but few shops. As I'm visiting the USA soon, I was thinking perhaps of getting the parts there and having someone competent locally do the repair. I ...
- 181
1
vote
0
answers
115
views
Weight and distension length of the "Gates Carbon Drive Eco Tension Tester"
I own a bike with a gates CDX belt drive. I noticed that my belt tension was way too low and tightened it, but I have no belt tension tester. I find that measuring the frequency of the belt "...
- 111
3
votes
1
answer
686
views
Abnormal wear on Gates Belt Drive CDX rear sprocket
I'm using a Gates Belt drive CDX setup with a Shimano Alfine 8 hub on a SOMA Wolverine frame. Over about 6000 km, I've worn out 3 stainless steel rear sprockets; the last one lasted only about 600km. ...
- 131
4
votes
2
answers
139
views
Recommended torque for belt port in rear triangle?
Last week while doing a bleed and rotor replacement on my Spot Acme, my bike accidentally fell from the stand with the wheels removed, causing a little damage to the pulley:
I didn't notice this ...
- 719
5
votes
1
answer
646
views
Is it normal to need to re-tension drive belt (Gates CDN) after few days?
I'm brand new to the world of belt-drive bikes so trying to understand what's normal and googling isn't helping with this specific question.
One of the selling points of belt drives is low maintenance ...
- 375
3
votes
2
answers
899
views
Convert the number of teeth in a chain-based drive train to the number of teeth in a gates-based drive train
If I'd convert my drivetrain from a chain-based drivetrain into a belt-based drivetrain and I'd want to keep the exact same transmission, how do I know the required number of teeth for the front belt ...
- 1,518
4
votes
2
answers
605
views
Adjusting chain line by mounting the chain ring inside the crank spider
Background: Sugino RD2 single-speed cranks call for a 103mm bottom bracket which gives a chain line of 45mm, which is what I need, but there aren't suitable square-taper BBs in this size. ...
- 739
3
votes
1
answer
404
views
Convert Dahon Mariner D7 to belt drive and internal hub?
Is it feasible to convert a Dahon Mariner D7 to use a belt drive and an internal 7 speed hub? Any ballpark estimates for cost of parts?
I ask because I am rehabilitating my Dahon sailing bike of 15 ...
- 31
1
vote
0
answers
163
views
Is there something wrong with my belt drive?
I have a 2017 Trek Dublin BLX bicycle, which has a Gates belt drivetrain (mix of CDX and CDN) and a Shimano Alfine 8 hub. I use this as my commuter bike and so far I don't have any reasons to complain....
- 11
3
votes
2
answers
1k
views
Do split frames for belt drive bikes need special screws?
I have a belt drive Cube bike, and the frame is Aluminium.
The rear triangle has a split to accommodate the belt, there's a screw right above the rear sprocket, on the right side of the bike - see ...
- 583
12
votes
2
answers
2k
views
Gates CDN - frequent belt failures
update at the bottom
I ride a belt drive bike fitted with a Gates CDN front sprocket (on the crank), a CDN belt and a CDX rear sprocket. Around the 2200km/1400mi mark, the CDN belt failed and teeth ...
- 583
4
votes
3
answers
834
views
Can a Pinion bike work with an indoor direct drive trainer?
I have a Priority 600 bike with a pinion c.12 gearbox and a Gates belt drive, and I'm currently contemplating winter training plans. Will this work with a Tacx NEO 2T trainer, provided that I buy a ...
- 485
4
votes
1
answer
3k
views
What crankset works with Gates Belt Drive?
I’m building a split-frame touring bike from scratch and want to use a belt-driven internal gear hub (no engine) using one of these front sprockets from Gates.
Main question: What crankset still ...
- 739
3
votes
1
answer
2k
views
Clicking sound when pedalling hard
EDIT: Dropped it off at my local bike shop and the mechanic had the following to say about it:
Bottom bracket very low quality, also worn bearings. Due to open frame type was a lot of dirt inside ...
- 282
3
votes
1
answer
2k
views
Does anyone know how to adjust belt tension for Cube Travel Exc?
I have just bought my Cube Travel Exc with Thun Zumba Bottom Bracket and Alfine 8 speed. I noticed that just after a few days of ride the belt has slacked and measured at under 30 Hz.
I have viewed ...
- 31
5
votes
1
answer
620
views
Nexus IGH reluctant to shift after applying load
I ride a belt drive bike with a Shimano Nexus SG-C6001-8D IGH. I'm aware of the normal cable adjustment procedure (aligning yellow marks on the hub), I've done this.
When I ride normally, shifting is ...
- 583
4
votes
4
answers
1k
views
Can my belt drive frame be converted to a derailleur setup?
I want to know whether my frame is compatible with any kind of derailleur hanger, as I want to install standard gears. Due to my Nexus 8 speed hub being really quite uncomfortable and faulty since ...
- 41
1
vote
1
answer
480
views
Cito bicycle history / old steel bike identification
I have a Cito Master Star bicycle but cannot find any info about it online. I think it is a 1969 model as it has a 69 stamped onto it. It also has aero coronado cranks but has some belt drive system I'...
- 13
5
votes
2
answers
618
views
Different vibrating tone on a belt drive with a Shimano Alfine hub
I have recently bought a new Cube EXC Travel bicycle with a Gates carbon drive. This bicycle is equipped with a Shimano Alfie 8 speed internally geared hub. The bicycle is new and it seems that the ...
- 53
8
votes
2
answers
7k
views
Shimano Nexus 8 internal hub skip/clacking noise when under torque
Intro
Just 2 months ago, I bought a new Cube Hyde Pro 2020 bicycle with belt drive (Gates, rear cassette out of metal, CDC with 22 teeth) Shimano Nexus 8 internal hub (model SG-C6001-8D). I mostly ...
- 113
2
votes
2
answers
699
views
Gates Carbon Drive single speed shows inconsistent tension
I recently noticed an issue with my Carbon Drive bike where pedaling was difficult at a certain point of rotation for the crank. Within about 30 degrees of movement of the crank, the tension on the ...
- 35
5
votes
1
answer
1k
views
Achieving Correct Beltline for Gates Carbon Drive
I’m building up a Soma Wolverine with a Gates Carbon Drive and Alfine 11 internal gear hub. The Gates literature indicates that the beltline should be 43.7 mm +/- 1mm.
I am trying to use an old ...
- 271
3
votes
2
answers
7k
views
Upgrading Gates CDN to CDX-EXP
First of all I will start with the fact that I'm completely new to the world of hardware related to bike parts.
But I must say I ride my bike a lot. My everyday commute is roughly 40-50 km. I drive a ...
2
votes
1
answer
572
views
Properly tensioning a belt drive with two tensioner
The other day I had to replace tires on my bike.
Having recently switched to a belt drive + gear hub, I have looked at some on line tutorial on how to remove the rear wheel in such cases.
Problem ...
- 7,311
1
vote
1
answer
424
views
Need guidance on selecting proper Gates belt drive components for my belt-ready frame
I have a very cheap, locally made bike with a belt drive installed on it (the frame is belt-ready). One more thing to note is that the bike is equipped with SG-3C41 IGH from Shimano.
The problem is ...
- 95
4
votes
1
answer
285
views
How to loosen eccentric BB shell?
I have a one-year-old REI CTY 1.3. Aluminum frame, belt drive, with an eccentric BB shell for tensioning the belt. The bottom bracket itself is a standard Shimano BB-RS500, but I cannot identify the ...
- 201
2
votes
2
answers
9k
views
Convert to belt drive
Is it generally possible to convert a drivetrain on a bike from a chain to belt drive? What exactly is involved with this task?
- 803
4
votes
2
answers
635
views
Can the belt drive on a Trek 1st District be replaced with a chain drive?
I have a Trek 1st District bike that was given to me.
The belt drive is not very satisfactory. I have asked here about upgrading it to a newer version, but perhaps it would be better to set it up ...
- 1,729
6
votes
2
answers
504
views
Riding with a Gates belt past its due replacement mileage: can it snap or other risks?
I just purchased a belt drive bike (Gates CD).
Maintenance free, according to the BS and what I have read online. The only attention is to replace it every 5000 km.
Since I usually ride around 8000 ...
- 7,311
2
votes
2
answers
340
views
Belt drive, rear sprocket can move sideways
I have (RieseMüller/Bosch/Nuvinci/center track) and the rear sprocket can move slightly sideways.
Is this on purpose or is there anything loose?
- 315
3
votes
3
answers
2k
views
Gates carbon drive on carbon frame
It is hard to prove non-existence, but as far as my research goes, there is no carbon frame available for belt drive systems like Gates. My guess is that this is due to the requirement to be able to ...
- 696
3
votes
4
answers
4k
views
Early Rider Belter hub maintenance
My son has had an Early Rider Belter for around 14 months. Recently, I've noticed the free-wheel sounds "gritty", and there is quite a bit of friction if you move the cranks backwards while the rear ...
- 241
3
votes
1
answer
143
views
How do I calibrate my auto tension belt?
I have a Trek District IGH3 with a Mitsubishi belt drive that has an auto-tensioner. Last winter, the belt started slipping over the sprocket. It happened frequently enough that it ended up wearing ...
- 223
4
votes
1
answer
280
views
Benefit of high belt drive tension?
I have a Gates carbon belt drive on a NuVinci hub.
I haven't bothered with the the whole tensioning using the app and everything, but I have a set-up where it is perfectly quiet and I've never had it ...
- 181
2
votes
2
answers
845
views
Uneven tension on Gates Carbon Drive belt
I tried using the iOS app to check the tension on my Gates Carbon Drive belt (centre-track, CDX I assume as it's driving a Rohlof) and I could not get a consistent measurement over the length of the ...
- 690
2
votes
2
answers
877
views
Cadence: Belt drives + Nexus 11 hubs
So I'm looking for a bike that has the following:
Belt Drive,
11 speed Internal hub,
Mudguards and can fit a rack at the back.
The Contenders
Canyon Commuter 8
BMC Alpenchallenge AC01
Ghost Bikes ...
- 23
7
votes
1
answer
1k
views
How to center Gates belt drive?
The Gates belt is running slightly off-center on the rear sprocket. Does anybody know how to adjust the rear sprocket/wheel such that the belt runs centered?
Thanks
- 195
10
votes
3
answers
4k
views
Gates Carbon Drive vs single-speed chain, long term lifespan and maintenance
I'm looking to get a new bike which will require the smallest amount of maintenance.
The bike will have an internally-geared hub and I have the choice of single speed chain or belt drive.
I have ...
- 101
6
votes
1
answer
4k
views
Gates belt drive: installing larger front sprocket
I ordered a Cube Hyde Race bike with Gates belt drive. I live in an area where it rains a lot, and I use my bike year round, so I was sold on the promise of virtually maintenance-free drivetrain.
The ...
- 353
1
vote
2
answers
222
views
Gates Carbon drive on a Trek FX-S5 (Commuter)
I've been looking at the Gates Carbon Drive and was interested to know if it would it be possible to put a Gates Carbon drive system on a Trek FX-S5 ? I'm planning to use the bike mainly for commuting ...
- 113
2
votes
1
answer
1k
views
How to tighten gates belt drive on Focus planet 8
the belt on my focus planet 8 is becoming a bit loose and I thought of tightening it.
The rear wheel setup on the focus is similar to the one in the video from bikefriday below:
...
- 195