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Oneup Components ISCG05 Bash Guide

Oneup Components ISCG05 Bash Guide

Item #: CG201B01
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Oneup Components ISCG05 Bash Guide

Oneup ISCG05 Bash Guide

Yes, narrow wide chaingrings have dramatically reduced dropped chains. But still, wipe out dropped chains entirely, and more than double your chainring life with the Oneup ISCG05 Bash Guide. How? Keep in mind that as rings wear down, the teeth thin and loose their chain retention ability, leading to more dropped chains. The OneUp guide extends NW ring life by limiting the chains side-to-side movement reducing the NW tooth wear and totally preventing the chain from derailing. With a OneUp guide you only have to replace your chainring when the driving faces have worn out, which typically doubles your usable chainring life. You can install this guide without removing your crank, using just a 4mm hex. It's Boost and Oval compatible, and stainless hardware is included. The OneUp Bash Guide includes 3 different sizes of bash plates for compatibility with chainrings from 28-36T.


  • Material: 7075 aluminum, top guide glass reinforced thermoplastic
  • Chainline: 5.5mm adjustment
  • Mount: ISCG05
  • Capacity: 26-38T
  • Weight: 87g 28-30T, 102g 32-34T, 105g 36T

Incompatible frames (out of spec ISCG tab placement) Bronson 2, 5010 2, Tracer T275, Rocky Altitude 27.5

4.9 / 5.0
45 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Top Quality - Easy to Install.
Highly recommend this chain guide. I love that it is one size fits all - comes with a variety of bash guards that can be easily swapped out for different size chain rings. Easy to install - does not require cranks, chain ring or any other pats to be removed in order to install.

And finally, this is the chain guide Richie Rude runs on his enduro race bike. If it's good enough for Richie, it's certainly good enough for me.
May 29, 2017
1 month ago
It's lightweight and fits perfectly. I've smacked into a few rocks and it has not bent so my chainring is safe! Looks really clean too
May 23, 2017
6 months ago
San Diego
Excellent Product
Fantastic chaingiuide/bashguard. Simple to install, low maintenance, wears well, quiets down an already quiet drivetrain, and is tough enough to take repeated hits. Wouldn't hesitate to buy again.
December 9, 2016
12 months ago
San Diego
Great bashguide
Simple installation, slim profile and Jenson speedy delivery.
This fits perfectly on a kona process 153. i had problems installing two other bashguard/guide plates due to chain stay clearance. Oneup nailed it with this design. the front shim adjustment saves so much time when fine tuning.
May 6, 2016
Great Purchase
Lightweight, easy to install, so far so good!
July 1, 2016
Sandy Oregon
I would buy this Bash Guide again
Friend people help me at the local pick location.
July 27, 2016
Yucaipa CA
Greate Chain Guide
Arrived on time and perfect conditions.
June 28, 2016
Mexico city
I'll get this again and again
Delivery always on time. I'm in Nicaragua (central america) and guess what, jenson is the real deal.
July 23, 2016
Managua, Nicaragua
Minimal look, superior protection!
I was less worried about dropping my chain and more about crushing my sprocket but the OneUp bash guide will give you the peace of mind in both areas without looking overly endurobro. Super easy to install, and gives you plenty of room to go up or down in tooth count and will also protect an oval ring. They've also priced it just right. About 10 bucks cheaper than what it's going to cost when you trash your chain ring and chain on a rock, so for that alone it was a no trainer compared to some of the others out there. Right out of the gate I took a pretty big hit at northstar and the bash guide took it with no problem. Highly recommend this to anyone looking for a minimal yet durable solution.
August 30, 2016
Danville, CA
Exactly what I wanted
Service and delivery were excellent! Jenson has my business for life.
June 10, 2016
Minneapolis, Minn

Q & A

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Browse 10 questions Browse 10 questions and 78 answers
In the description there are 3 sizes, but there are no options in dropdown menu. Which size is this?
BrianF on Feb 2, 2017
BEST ANSWER: Each package comes with all 3 sizes, you fit them as needed.
Does the chain guide part only comes in green or does it come with an extra part in black?
aerialstrike on Mar 12, 2017
BEST ANSWER: The black chain guide in the picture (that looks identical to the green) comes with it as a replacement that you can switch out.
Will this work with a 1x12 setup?
Ian F on Feb 2, 2017
BEST ANSWER: 12 speed chain is narrower by .,4mm while the cassette is a slightly wider and closer to spokes. The provided shims make it easy to set the chain guide precisely where it won't rub the sides of the chain in 1st or 12th gear. The vertical adjust of the guide is a slot so easy to adjust to accommodate the elevated chain wrapping around the 50T cog. The bashguard itself is well inboard of the chain ring and won't be an issue.
If I buy this product what do I get? I mean, 3 plate protectors (diferent sizes), 2 chain guide (one green, one black), 3 screws Am I right?
José S on May 11, 2017
BEST ANSWER: YES you are correct.
3 bash guards for whatever size chainring you are running to obtain optimal ground clearance, for a 30T, 34T, & 36T chainring
A shopper on Jun 5, 2017
BEST ANSWER: Check your frame specs
Will this guide work on a 2017 tracer 275c?
Johnny Trek on May 23, 2017
BEST ANSWER: This is an ISCG05 compatable mount so you would need to find out if the 2017 Tracer has the same "ISCG05" standard. It looks like it does from the photos but I can't confirm and their website doesnt provide the info. Just contact Intense and ask them to confirm.
Hi there! does this product bring the screws and what's the size?
José S on May 11, 2017
BEST ANSWER: The screws to attach to your bike are included. I can't remember the size (thread pitch, etc) but as long as your bike as a standard ISCG05 mount pattern then this should work.
In the description it states that it is not compatible with the Bronson 2.0.. What about a Bronson 1?
Deft on Jul 13, 2016
BEST ANSWER: I have this on my Bronson 1. It works great.
Anyone do grinds on these?
A shopper on May 7, 2017
BEST ANSWER: You may be the first! I have smashed mine through numerous rock gardens and it's still going strong. Grinding them may bend the ISCG plate.
The name and price of this matches that of the version with the bashguard, but the description and photos are of the guide only version. Which is it?
Carston on May 1, 2016
BEST ANSWER: This item is both a chainguide and bashgaurd.

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Get free shipping with your $50 purchase today when you choose Standard Shipping at checkout. Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items

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Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.