Grade Carbon Frameset

The original is back! Generation three of our gravel-pioneering Grade frameset has been redesigned with more capability than ever before. With evolved geometry, increased tire clearance, and 30mm of ‘gravel travel’ thanks to Triple Triangle™, Grade offers more control for riders focused on the fun of expedition, not the stress of competition.
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Shipping Policy

Free shipping on all orders for bikes, apparel, parts & accessories for any order over $25 in the United States. 

*Please allow for 5-7 days of transit time as all orders are shipped via ground shipping.

*If an order is placed on Friday, please allow 2-3 days for processing. 

Please reach out to sales@gtbicycles.com if you have any questions.

Return Policy

We accept returns and exchanges on items purchased from GTBicycles.com for (30) thirty days from the date of purchase in accordance with our return policy below.

Details

  • The bike or part must be in its original packaging to receive a 100% refund.
  •  If product is unused but protective packaging has been removed or has major damage, we will refund 75% of the order.
  • We do not accept returns on apparel.
  • Please allow for 7-10 days to process the return and issue refund.

*Protective packaging includes: foam, cardboard, zip ties, plastic axle covers, warning decals and reflectors.

Please reach out to sales@gtbicycles.com to start a return.

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Gravel Travel

The Grade frame’s Triple Triangle design with floating stays offer as much as 30mm of “Gravel Travel” without rubber bumpers, pivots or mechanical features. This was achieved in part by our Dual Fiber Dynamics (DFD) located in the floating stays - a combination of low modulus, solid core, long strand glass fibers molded to an optimum shape and then wrapped in carbon for added strength and smooth transitions.

Suspension fork compatible

If the rough and chunky are your preference and you need more than Grade’s 30mm of Gravel Travel offers, add a suspension fork for even more rowdiness!

Integrated Frame Protection

Grade is just as comfortable on rough single track than it is on smooth tarmac. So, we’ve added robust frame protection on the downtube for the inevitable rock strikes and on the chainstay to safeguard against chain slap.

Frame

frame Grade Carbon Frame, Triple Triangle Design feat. Floating Seatstays, 12x142mm Thru Axle, 45mm Max Tire Width
sizes available SM, MD, LG, XL
fork Grade Carbon Fork, 1.5 Tapered Carbon Steerer, 12x100 Thru Axle
wheel size 700c
Please note that, based on component availability and other factors, specifications are subject to change without notice.

Fit Guide

XS
5'0 - 5'5"
SM
5'3" - 5'8"
MD
5'7" - 5'11"
LG
5'11" - 6'2"
XL
6'2" - 6'5"

Geometry

Sizes (mm) SM MD LG XL
Seat tube length 450 500 550 600
Seat tube angle effective 73 ° 73 ° 73 ° 73 °
Seat tube angle actual 73 ° 73 ° 73 ° 73 °
Top tube horizontal 553 581 609 638
Top tube actual 530 560 591 623
Head tube angle 70 ° 70 ° 70 ° 70 °
Standover 730 753 792 816
Head tube length 106 134 162 191
Wheelbase 1040 1069 1099 1129
Front center 621 650 680 710
Chainstay length 430 430 430 430
Bottom bracket drop 284 284 284 284
Bottom bracket height 284 284 284 284
Fork rake 55 55 55 55
Trail 72 72 72 72
Stack 550 577 603 630
Reach 385 405 425 445
75mm

Notes

Maximum Axle To Crown(A2C): 436.7mm

What headset is used on the Grade Carbon?

The Grade Carbon has a Semi-Integrated, 1-1/8” - 1-1/2” heads tube. It utilizes a IS42/52 internal headset.

What is the max rotor size for the rear brake on the Grade Carbon?

The max rotor size on the rear brake is a 180mm rotor. The native brake rotor size without an adapter is 160mm rotor.

What front derailleur or chain guide is compatible with the Grade Carbon?

The Grade Carbon is compatible with any braze on front derailleur or chain guide.

What is the maximum chainring size for the Grade Carbon?

The maximum chainring size on the Grade Carbon is 48/32T for 2x drivetrains and a 42T chainring for 1x drivetrains.

What is the chainline on the Grade Carbon?

The Grade Carbon has wide chainline and the minimum chainline is 47mm.

What derailleur hanger is used on the Grade Carbon?

The derailleur hanger is a TA ST SS 076. (Part #K33040)

What is the max tire width on the Grade Carbon?

The max tire width is a 45mm wide tire (measured).

What bottom bracket is used on the Grade Carbon?

The Grade Carbon uses a BSA/68m bottom bracket.

What is the max rider weight on the Grade Carbon?

The max rider weight is 305lbs/138kg.

Is touchup paint available?

Unfortunately, touchup paint is not available at this time as our paint codes are unique to our painter.

GT Tech Book

GT Owner's Manual